1639891188

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{120829}}^1$

素因数の和:120881

約数の個数: 72

約数和(自身を含む): 4618122600

約数和(自身を除く): 2978231412

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 29, 36, 39, 52, 58, 78, 87, 116, 117, 156, 174, 234, 261, 348, 377, 468, 522, 754, 1044, 1131, 1508, 2262, 3393, 4524, 6786, 13572, 120829, 241658, 362487, 483316, 724974, 1087461, 1449948, 1570777, 2174922, 3141554, 3504041, 4349844, 4712331, 6283108, 7008082, 9424662, 10512123, 14016164, 14136993, 18849324, 21024246, 28273986, 31536369, 42048492, 45552533, 56547972, 63072738, 91105066, 126145476, 136657599, 182210132, 273315198, 409972797, 546630396, 819945594, 1639891188]

約数ペア:

[(1, 1639891188), (2, 819945594), (3, 546630396), (4, 409972797), (6, 273315198), (9, 182210132), (12, 136657599), (13, 126145476), (18, 91105066), (26, 63072738), (29, 56547972), (36, 45552533), (39, 42048492), (52, 31536369), (58, 28273986), (78, 21024246), (87, 18849324), (116, 14136993), (117, 14016164), (156, 10512123), (174, 9424662), (234, 7008082), (261, 6283108), (348, 4712331), (377, 4349844), (468, 3504041), (522, 3141554), (754, 2174922), (1044, 1570777), (1131, 1449948), (1508, 1087461), (2262, 724974), (3393, 483316), (4524, 362487), (6786, 241658), (13572, 120829)]