19810440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1$

素因数の和:133

約数の個数: 256

約数和(自身を含む): 76204800

約数和(自身を除く): 56394360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 17, 18, 20, 24, 26, 27, 30, 34, 36, 39, 40, 45, 51, 52, 54, 60, 65, 68, 72, 78, 83, 85, 90, 102, 104, 108, 117, 120, 130, 135, 136, 153, 156, 166, 170, 180, 195, 204, 216, 221, 234, 249, 255, 260, 270, 306, 312, 332, 340, 351, 360, 390, 408, 415, 442, 459, 468, 498, 510, 520, 540, 585, 612, 663, 664, 680, 702, 747, 765, 780, 830, 884, 918, 936, 996, 1020, 1079, 1080, 1105, 1170, 1224, 1245, 1326, 1404, 1411, 1494, 1530, 1560, 1660, 1755, 1768, 1836, 1989, 1992, 2040, 2158, 2210, 2241, 2295, 2340, 2490, 2652, 2808, 2822, 2988, 3060, 3237, 3315, 3320, 3510, 3672, 3735, 3978, 4233, 4316, 4420, 4482, 4590, 4680, 4980, 5304, 5395, 5644, 5967, 5976, 6120, 6474, 6630, 7020, 7055, 7470, 7956, 8466, 8632, 8840, 8964, 9180, 9711, 9945, 9960, 10790, 11205, 11288, 11934, 12699, 12948, 13260, 14040, 14110, 14940, 15912, 16185, 16932, 17928, 18343, 18360, 19422, 19890, 21165, 21580, 22410, 23868, 25398, 25896, 26520, 28220, 29133, 29835, 29880, 32370, 33864, 36686, 38097, 38844, 39780, 42330, 43160, 44820, 47736, 48555, 50796, 55029, 56440, 58266, 59670, 63495, 64740, 73372, 76194, 77688, 79560, 84660, 89640, 91715, 97110, 101592, 110058, 116532, 119340, 126990, 129480, 145665, 146744, 152388, 165087, 169320, 183430, 190485, 194220, 220116, 233064, 238680, 253980, 275145, 291330, 304776, 330174, 366860, 380970, 388440, 440232, 495261, 507960, 550290, 582660, 660348, 733720, 761940, 825435, 990522, 1100580, 1165320, 1320696, 1523880, 1650870, 1981044, 2201160, 2476305, 3301740, 3962088, 4952610, 6603480, 9905220, 19810440]

約数ペア:

[(1, 19810440), (2, 9905220), (3, 6603480), (4, 4952610), (5, 3962088), (6, 3301740), (8, 2476305), (9, 2201160), (10, 1981044), (12, 1650870), (13, 1523880), (15, 1320696), (17, 1165320), (18, 1100580), (20, 990522), (24, 825435), (26, 761940), (27, 733720), (30, 660348), (34, 582660), (36, 550290), (39, 507960), (40, 495261), (45, 440232), (51, 388440), (52, 380970), (54, 366860), (60, 330174), (65, 304776), (68, 291330), (72, 275145), (78, 253980), (83, 238680), (85, 233064), (90, 220116), (102, 194220), (104, 190485), (108, 183430), (117, 169320), (120, 165087), (130, 152388), (135, 146744), (136, 145665), (153, 129480), (156, 126990), (166, 119340), (170, 116532), (180, 110058), (195, 101592), (204, 97110), (216, 91715), (221, 89640), (234, 84660), (249, 79560), (255, 77688), (260, 76194), (270, 73372), (306, 64740), (312, 63495), (332, 59670), (340, 58266), (351, 56440), (360, 55029), (390, 50796), (408, 48555), (415, 47736), (442, 44820), (459, 43160), (468, 42330), (498, 39780), (510, 38844), (520, 38097), (540, 36686), (585, 33864), (612, 32370), (663, 29880), (664, 29835), (680, 29133), (702, 28220), (747, 26520), (765, 25896), (780, 25398), (830, 23868), (884, 22410), (918, 21580), (936, 21165), (996, 19890), (1020, 19422), (1079, 18360), (1080, 18343), (1105, 17928), (1170, 16932), (1224, 16185), (1245, 15912), (1326, 14940), (1404, 14110), (1411, 14040), (1494, 13260), (1530, 12948), (1560, 12699), (1660, 11934), (1755, 11288), (1768, 11205), (1836, 10790), (1989, 9960), (1992, 9945), (2040, 9711), (2158, 9180), (2210, 8964), (2241, 8840), (2295, 8632), (2340, 8466), (2490, 7956), (2652, 7470), (2808, 7055), (2822, 7020), (2988, 6630), (3060, 6474), (3237, 6120), (3315, 5976), (3320, 5967), (3510, 5644), (3672, 5395), (3735, 5304), (3978, 4980), (4233, 4680), (4316, 4590), (4420, 4482)]