1660959920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1\times {\mathrm{1889}}^1$

素因数の和:2310

約数の個数: 80

約数和(自身を含む): 4007556000

約数和(自身を除く): 2346596080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 379, 464, 580, 758, 1160, 1516, 1889, 1895, 2320, 3032, 3778, 3790, 6064, 7556, 7580, 9445, 10991, 15112, 15160, 18890, 21982, 30224, 30320, 37780, 43964, 54781, 54955, 75560, 87928, 109562, 109910, 151120, 175856, 219124, 219820, 273905, 438248, 439640, 547810, 715931, 876496, 879280, 1095620, 1431862, 2191240, 2863724, 3579655, 4382480, 5727448, 7159310, 11454896, 14318620, 20761999, 28637240, 41523998, 57274480, 83047996, 103809995, 166095992, 207619990, 332191984, 415239980, 830479960, 1660959920]

約数ペア:

[(1, 1660959920), (2, 830479960), (4, 415239980), (5, 332191984), (8, 207619990), (10, 166095992), (16, 103809995), (20, 83047996), (29, 57274480), (40, 41523998), (58, 28637240), (80, 20761999), (116, 14318620), (145, 11454896), (232, 7159310), (290, 5727448), (379, 4382480), (464, 3579655), (580, 2863724), (758, 2191240), (1160, 1431862), (1516, 1095620), (1889, 879280), (1895, 876496), (2320, 715931), (3032, 547810), (3778, 439640), (3790, 438248), (6064, 273905), (7556, 219820), (7580, 219124), (9445, 175856), (10991, 151120), (15112, 109910), (15160, 109562), (18890, 87928), (21982, 75560), (30224, 54955), (30320, 54781), (37780, 43964)]