131218920

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1021}}^1$

素因数の和:1065

約数の個数: 256

約数和(自身を含む): 529804800

約数和(自身を除く): 398585880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 17, 18, 20, 21, 24, 27, 28, 30, 34, 35, 36, 40, 42, 45, 51, 54, 56, 60, 63, 68, 70, 72, 84, 85, 90, 102, 105, 108, 119, 120, 126, 135, 136, 140, 153, 168, 170, 180, 189, 204, 210, 216, 238, 252, 255, 270, 280, 306, 315, 340, 357, 360, 378, 408, 420, 459, 476, 504, 510, 540, 595, 612, 630, 680, 714, 756, 765, 840, 918, 945, 952, 1020, 1021, 1071, 1080, 1190, 1224, 1260, 1428, 1512, 1530, 1785, 1836, 1890, 2040, 2042, 2142, 2295, 2380, 2520, 2856, 3060, 3063, 3213, 3570, 3672, 3780, 4084, 4284, 4590, 4760, 5105, 5355, 6120, 6126, 6426, 7140, 7147, 7560, 8168, 8568, 9180, 9189, 10210, 10710, 12252, 12852, 14280, 14294, 15315, 16065, 17357, 18360, 18378, 20420, 21420, 21441, 24504, 25704, 27567, 28588, 30630, 32130, 34714, 35735, 36756, 40840, 42840, 42882, 45945, 52071, 55134, 57176, 61260, 64260, 64323, 69428, 71470, 73512, 85764, 86785, 91890, 104142, 107205, 110268, 121499, 122520, 128520, 128646, 137835, 138856, 142940, 156213, 171528, 173570, 183780, 192969, 208284, 214410, 220536, 242998, 257292, 260355, 275670, 285880, 312426, 321615, 347140, 364497, 367560, 385938, 416568, 428820, 468639, 485996, 514584, 520710, 551340, 607495, 624852, 643230, 694280, 728994, 771876, 781065, 857640, 937278, 964845, 971992, 1041420, 1093491, 1102680, 1214990, 1249704, 1286460, 1457988, 1543752, 1562130, 1822485, 1874556, 1929690, 2082840, 2186982, 2343195, 2429980, 2572920, 2915976, 3124260, 3280473, 3644970, 3749112, 3859380, 4373964, 4686390, 4859960, 5467455, 6248520, 6560946, 7289940, 7718760, 8747928, 9372780, 10934910, 13121892, 14579880, 16402365, 18745560, 21869820, 26243784, 32804730, 43739640, 65609460, 131218920]

約数ペア:

[(1, 131218920), (2, 65609460), (3, 43739640), (4, 32804730), (5, 26243784), (6, 21869820), (7, 18745560), (8, 16402365), (9, 14579880), (10, 13121892), (12, 10934910), (14, 9372780), (15, 8747928), (17, 7718760), (18, 7289940), (20, 6560946), (21, 6248520), (24, 5467455), (27, 4859960), (28, 4686390), (30, 4373964), (34, 3859380), (35, 3749112), (36, 3644970), (40, 3280473), (42, 3124260), (45, 2915976), (51, 2572920), (54, 2429980), (56, 2343195), (60, 2186982), (63, 2082840), (68, 1929690), (70, 1874556), (72, 1822485), (84, 1562130), (85, 1543752), (90, 1457988), (102, 1286460), (105, 1249704), (108, 1214990), (119, 1102680), (120, 1093491), (126, 1041420), (135, 971992), (136, 964845), (140, 937278), (153, 857640), (168, 781065), (170, 771876), (180, 728994), (189, 694280), (204, 643230), (210, 624852), (216, 607495), (238, 551340), (252, 520710), (255, 514584), (270, 485996), (280, 468639), (306, 428820), (315, 416568), (340, 385938), (357, 367560), (360, 364497), (378, 347140), (408, 321615), (420, 312426), (459, 285880), (476, 275670), (504, 260355), (510, 257292), (540, 242998), (595, 220536), (612, 214410), (630, 208284), (680, 192969), (714, 183780), (756, 173570), (765, 171528), (840, 156213), (918, 142940), (945, 138856), (952, 137835), (1020, 128646), (1021, 128520), (1071, 122520), (1080, 121499), (1190, 110268), (1224, 107205), (1260, 104142), (1428, 91890), (1512, 86785), (1530, 85764), (1785, 73512), (1836, 71470), (1890, 69428), (2040, 64323), (2042, 64260), (2142, 61260), (2295, 57176), (2380, 55134), (2520, 52071), (2856, 45945), (3060, 42882), (3063, 42840), (3213, 40840), (3570, 36756), (3672, 35735), (3780, 34714), (4084, 32130), (4284, 30630), (4590, 28588), (4760, 27567), (5105, 25704), (5355, 24504), (6120, 21441), (6126, 21420), (6426, 20420), (7140, 18378), (7147, 18360), (7560, 17357), (8168, 16065), (8568, 15315), (9180, 14294), (9189, 14280), (10210, 12852), (10710, 12252)]