680977125

素因数分解:

$3^7\times 5^3\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 128

約数和(自身を含む): 1326274560

約数和(自身を除く): 645297435

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 53, 75, 81, 125, 135, 141, 159, 225, 235, 243, 265, 375, 405, 423, 477, 675, 705, 729, 795, 1125, 1175, 1215, 1269, 1325, 1431, 2025, 2115, 2187, 2385, 2491, 3375, 3525, 3645, 3807, 3975, 4293, 5875, 6075, 6345, 6625, 7155, 7473, 10125, 10575, 10935, 11421, 11925, 12455, 12879, 17625, 18225, 19035, 19875, 21465, 22419, 30375, 31725, 34263, 35775, 37365, 38637, 52875, 54675, 57105, 59625, 62275, 64395, 67257, 91125, 95175, 102789, 107325, 112095, 115911, 158625, 171315, 178875, 186825, 193185, 201771, 273375, 285525, 311375, 321975, 336285, 475875, 513945, 536625, 560475, 579555, 605313, 856575, 934125, 965925, 1008855, 1427625, 1609875, 1681425, 1815939, 2569725, 2802375, 2897775, 3026565, 4282875, 4829625, 5044275, 5447817, 8407125, 9079695, 12848625, 14488875, 15132825, 25221375, 27239085, 45398475, 75664125, 136195425, 226992375, 680977125]

約数ペア:

[(1, 680977125), (3, 226992375), (5, 136195425), (9, 75664125), (15, 45398475), (25, 27239085), (27, 25221375), (45, 15132825), (47, 14488875), (53, 12848625), (75, 9079695), (81, 8407125), (125, 5447817), (135, 5044275), (141, 4829625), (159, 4282875), (225, 3026565), (235, 2897775), (243, 2802375), (265, 2569725), (375, 1815939), (405, 1681425), (423, 1609875), (477, 1427625), (675, 1008855), (705, 965925), (729, 934125), (795, 856575), (1125, 605313), (1175, 579555), (1215, 560475), (1269, 536625), (1325, 513945), (1431, 475875), (2025, 336285), (2115, 321975), (2187, 311375), (2385, 285525), (2491, 273375), (3375, 201771), (3525, 193185), (3645, 186825), (3807, 178875), (3975, 171315), (4293, 158625), (5875, 115911), (6075, 112095), (6345, 107325), (6625, 102789), (7155, 95175), (7473, 91125), (10125, 67257), (10575, 64395), (10935, 62275), (11421, 59625), (11925, 57105), (12455, 54675), (12879, 52875), (17625, 38637), (18225, 37365), (19035, 35775), (19875, 34263), (21465, 31725), (22419, 30375)]