656478780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{2111}}^1$

素因数の和:2267

約数の個数: 96

約数和(自身を含む): 1890459648

約数和(自身を除く): 1233980868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 73, 142, 146, 213, 219, 284, 292, 355, 365, 426, 438, 710, 730, 852, 876, 1065, 1095, 1420, 1460, 2111, 2130, 2190, 4222, 4260, 4380, 5183, 6333, 8444, 10366, 10555, 12666, 15549, 20732, 21110, 25332, 25915, 31098, 31665, 42220, 51830, 62196, 63330, 77745, 103660, 126660, 149881, 154103, 155490, 299762, 308206, 310980, 449643, 462309, 599524, 616412, 749405, 770515, 899286, 924618, 1498810, 1541030, 1798572, 1849236, 2248215, 2311545, 2997620, 3082060, 4496430, 4623090, 8992860, 9246180, 10941313, 21882626, 32823939, 43765252, 54706565, 65647878, 109413130, 131295756, 164119695, 218826260, 328239390, 656478780]

約数ペア:

[(1, 656478780), (2, 328239390), (3, 218826260), (4, 164119695), (5, 131295756), (6, 109413130), (10, 65647878), (12, 54706565), (15, 43765252), (20, 32823939), (30, 21882626), (60, 10941313), (71, 9246180), (73, 8992860), (142, 4623090), (146, 4496430), (213, 3082060), (219, 2997620), (284, 2311545), (292, 2248215), (355, 1849236), (365, 1798572), (426, 1541030), (438, 1498810), (710, 924618), (730, 899286), (852, 770515), (876, 749405), (1065, 616412), (1095, 599524), (1420, 462309), (1460, 449643), (2111, 310980), (2130, 308206), (2190, 299762), (4222, 155490), (4260, 154103), (4380, 149881), (5183, 126660), (6333, 103660), (8444, 77745), (10366, 63330), (10555, 62196), (12666, 51830), (15549, 42220), (20732, 31665), (21110, 31098), (25332, 25915)]