213079100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2687}}^1$

素因数の和:2775

約数の個数: 72

約数和(自身を含む): 506300928

約数和(自身を除く): 293221828

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 61, 65, 100, 122, 130, 244, 260, 305, 325, 610, 650, 793, 1220, 1300, 1525, 1586, 2687, 3050, 3172, 3965, 5374, 6100, 7930, 10748, 13435, 15860, 19825, 26870, 34931, 39650, 53740, 67175, 69862, 79300, 134350, 139724, 163907, 174655, 268700, 327814, 349310, 655628, 698620, 819535, 873275, 1639070, 1746550, 2130791, 3278140, 3493100, 4097675, 4261582, 8195350, 8523164, 10653955, 16390700, 21307910, 42615820, 53269775, 106539550, 213079100]

約数ペア:

[(1, 213079100), (2, 106539550), (4, 53269775), (5, 42615820), (10, 21307910), (13, 16390700), (20, 10653955), (25, 8523164), (26, 8195350), (50, 4261582), (52, 4097675), (61, 3493100), (65, 3278140), (100, 2130791), (122, 1746550), (130, 1639070), (244, 873275), (260, 819535), (305, 698620), (325, 655628), (610, 349310), (650, 327814), (793, 268700), (1220, 174655), (1300, 163907), (1525, 139724), (1586, 134350), (2687, 79300), (3050, 69862), (3172, 67175), (3965, 53740), (5374, 39650), (6100, 34931), (7930, 26870), (10748, 19825), (13435, 15860)]