42874640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:520

約数の個数: 80

約数和(自身を含む): 106749120

約数和(自身を除く): 63874480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 67, 76, 80, 95, 134, 152, 190, 268, 304, 335, 380, 421, 536, 670, 760, 842, 1072, 1273, 1340, 1520, 1684, 2105, 2546, 2680, 3368, 4210, 5092, 5360, 6365, 6736, 7999, 8420, 10184, 12730, 15998, 16840, 20368, 25460, 28207, 31996, 33680, 39995, 50920, 56414, 63992, 79990, 101840, 112828, 127984, 141035, 159980, 225656, 282070, 319960, 451312, 535933, 564140, 639920, 1071866, 1128280, 2143732, 2256560, 2679665, 4287464, 5359330, 8574928, 10718660, 21437320, 42874640]

約数ペア:

[(1, 42874640), (2, 21437320), (4, 10718660), (5, 8574928), (8, 5359330), (10, 4287464), (16, 2679665), (19, 2256560), (20, 2143732), (38, 1128280), (40, 1071866), (67, 639920), (76, 564140), (80, 535933), (95, 451312), (134, 319960), (152, 282070), (190, 225656), (268, 159980), (304, 141035), (335, 127984), (380, 112828), (421, 101840), (536, 79990), (670, 63992), (760, 56414), (842, 50920), (1072, 39995), (1273, 33680), (1340, 31996), (1520, 28207), (1684, 25460), (2105, 20368), (2546, 16840), (2680, 15998), (3368, 12730), (4210, 10184), (5092, 8420), (5360, 7999), (6365, 6736)]