12925900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 30890384

約数和(自身を除く): 17964484

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 61, 65, 100, 122, 130, 163, 244, 260, 305, 325, 326, 610, 650, 652, 793, 815, 1220, 1300, 1525, 1586, 1630, 2119, 3050, 3172, 3260, 3965, 4075, 4238, 6100, 7930, 8150, 8476, 9943, 10595, 15860, 16300, 19825, 19886, 21190, 39650, 39772, 42380, 49715, 52975, 79300, 99430, 105950, 129259, 198860, 211900, 248575, 258518, 497150, 517036, 646295, 994300, 1292590, 2585180, 3231475, 6462950, 12925900]

約数ペア:

[(1, 12925900), (2, 6462950), (4, 3231475), (5, 2585180), (10, 1292590), (13, 994300), (20, 646295), (25, 517036), (26, 497150), (50, 258518), (52, 248575), (61, 211900), (65, 198860), (100, 129259), (122, 105950), (130, 99430), (163, 79300), (244, 52975), (260, 49715), (305, 42380), (325, 39772), (326, 39650), (610, 21190), (650, 19886), (652, 19825), (793, 16300), (815, 15860), (1220, 10595), (1300, 9943), (1525, 8476), (1586, 8150), (1630, 7930), (2119, 6100), (3050, 4238), (3172, 4075), (3260, 3965)]