642161940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{32531}}^1$

素因数の和:32597

約数の個数: 96

約数和(自身を含む): 2098704384

約数和(自身を除く): 1456542444

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 60, 70, 84, 94, 105, 140, 141, 188, 210, 235, 282, 329, 420, 470, 564, 658, 705, 940, 987, 1316, 1410, 1645, 1974, 2820, 3290, 3948, 4935, 6580, 9870, 19740, 32531, 65062, 97593, 130124, 162655, 195186, 227717, 325310, 390372, 455434, 487965, 650620, 683151, 910868, 975930, 1138585, 1366302, 1528957, 1951860, 2277170, 2732604, 3057914, 3415755, 4554340, 4586871, 6115828, 6831510, 7644785, 9173742, 10702699, 13663020, 15289570, 18347484, 21405398, 22934355, 30579140, 32108097, 42810796, 45868710, 53513495, 64216194, 91737420, 107026990, 128432388, 160540485, 214053980, 321080970, 642161940]

約数ペア:

[(1, 642161940), (2, 321080970), (3, 214053980), (4, 160540485), (5, 128432388), (6, 107026990), (7, 91737420), (10, 64216194), (12, 53513495), (14, 45868710), (15, 42810796), (20, 32108097), (21, 30579140), (28, 22934355), (30, 21405398), (35, 18347484), (42, 15289570), (47, 13663020), (60, 10702699), (70, 9173742), (84, 7644785), (94, 6831510), (105, 6115828), (140, 4586871), (141, 4554340), (188, 3415755), (210, 3057914), (235, 2732604), (282, 2277170), (329, 1951860), (420, 1528957), (470, 1366302), (564, 1138585), (658, 975930), (705, 910868), (940, 683151), (987, 650620), (1316, 487965), (1410, 455434), (1645, 390372), (1974, 325310), (2820, 227717), (3290, 195186), (3948, 162655), (4935, 130124), (6580, 97593), (9870, 65062), (19740, 32531)]