81233880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:250

約数の個数: 256

約数和(自身を含む): 308689920

約数和(自身を除く): 227456040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 43, 52, 56, 60, 65, 70, 78, 84, 86, 91, 104, 105, 120, 129, 130, 140, 156, 168, 172, 173, 182, 195, 210, 215, 258, 260, 273, 280, 301, 312, 344, 346, 364, 390, 420, 430, 455, 516, 519, 520, 546, 559, 602, 645, 692, 728, 780, 840, 860, 865, 903, 910, 1032, 1038, 1092, 1118, 1204, 1211, 1290, 1365, 1384, 1505, 1560, 1677, 1720, 1730, 1806, 1820, 2076, 2184, 2236, 2249, 2408, 2422, 2580, 2595, 2730, 2795, 3010, 3354, 3460, 3612, 3633, 3640, 3913, 4152, 4472, 4498, 4515, 4844, 5160, 5190, 5460, 5590, 6020, 6055, 6708, 6747, 6920, 7224, 7266, 7439, 7826, 8385, 8996, 9030, 9688, 10380, 10920, 11180, 11245, 11739, 12040, 12110, 13416, 13494, 14532, 14878, 15652, 15743, 16770, 17992, 18060, 18165, 19565, 20760, 22317, 22360, 22490, 23478, 24220, 26988, 29064, 29756, 31304, 31486, 33540, 33735, 36120, 36330, 37195, 39130, 44634, 44980, 46956, 47229, 48440, 52073, 53976, 58695, 59512, 62972, 67080, 67470, 72660, 74390, 78260, 78715, 89268, 89960, 93912, 94458, 96707, 104146, 111585, 117390, 125944, 134940, 145320, 148780, 156219, 156520, 157430, 178536, 188916, 193414, 208292, 223170, 234780, 236145, 260365, 269880, 290121, 297560, 312438, 314860, 377832, 386828, 416584, 446340, 469560, 472290, 483535, 520730, 580242, 624876, 629720, 676949, 773656, 781095, 892680, 944580, 967070, 1041460, 1160484, 1249752, 1353898, 1450605, 1562190, 1889160, 1934140, 2030847, 2082920, 2320968, 2707796, 2901210, 3124380, 3384745, 3868280, 4061694, 5415592, 5802420, 6248760, 6769490, 8123388, 10154235, 11604840, 13538980, 16246776, 20308470, 27077960, 40616940, 81233880]

約数ペア:

[(1, 81233880), (2, 40616940), (3, 27077960), (4, 20308470), (5, 16246776), (6, 13538980), (7, 11604840), (8, 10154235), (10, 8123388), (12, 6769490), (13, 6248760), (14, 5802420), (15, 5415592), (20, 4061694), (21, 3868280), (24, 3384745), (26, 3124380), (28, 2901210), (30, 2707796), (35, 2320968), (39, 2082920), (40, 2030847), (42, 1934140), (43, 1889160), (52, 1562190), (56, 1450605), (60, 1353898), (65, 1249752), (70, 1160484), (78, 1041460), (84, 967070), (86, 944580), (91, 892680), (104, 781095), (105, 773656), (120, 676949), (129, 629720), (130, 624876), (140, 580242), (156, 520730), (168, 483535), (172, 472290), (173, 469560), (182, 446340), (195, 416584), (210, 386828), (215, 377832), (258, 314860), (260, 312438), (273, 297560), (280, 290121), (301, 269880), (312, 260365), (344, 236145), (346, 234780), (364, 223170), (390, 208292), (420, 193414), (430, 188916), (455, 178536), (516, 157430), (519, 156520), (520, 156219), (546, 148780), (559, 145320), (602, 134940), (645, 125944), (692, 117390), (728, 111585), (780, 104146), (840, 96707), (860, 94458), (865, 93912), (903, 89960), (910, 89268), (1032, 78715), (1038, 78260), (1092, 74390), (1118, 72660), (1204, 67470), (1211, 67080), (1290, 62972), (1365, 59512), (1384, 58695), (1505, 53976), (1560, 52073), (1677, 48440), (1720, 47229), (1730, 46956), (1806, 44980), (1820, 44634), (2076, 39130), (2184, 37195), (2236, 36330), (2249, 36120), (2408, 33735), (2422, 33540), (2580, 31486), (2595, 31304), (2730, 29756), (2795, 29064), (3010, 26988), (3354, 24220), (3460, 23478), (3612, 22490), (3633, 22360), (3640, 22317), (3913, 20760), (4152, 19565), (4472, 18165), (4498, 18060), (4515, 17992), (4844, 16770), (5160, 15743), (5190, 15652), (5460, 14878), (5590, 14532), (6020, 13494), (6055, 13416), (6708, 12110), (6747, 12040), (6920, 11739), (7224, 11245), (7266, 11180), (7439, 10920), (7826, 10380), (8385, 9688), (8996, 9030)]