201022900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{647}}^1$

素因数の和:913

約数の個数: 72

約数和(自身を含む): 472469760

約数和(自身を除く): 271446860

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 239, 260, 325, 478, 647, 650, 956, 1195, 1294, 1300, 2390, 2588, 3107, 3235, 4780, 5975, 6214, 6470, 8411, 11950, 12428, 12940, 15535, 16175, 16822, 23900, 31070, 32350, 33644, 42055, 62140, 64700, 77675, 84110, 154633, 155350, 168220, 210275, 309266, 310700, 420550, 618532, 773165, 841100, 1546330, 2010229, 3092660, 3865825, 4020458, 7731650, 8040916, 10051145, 15463300, 20102290, 40204580, 50255725, 100511450, 201022900]

約数ペア:

[(1, 201022900), (2, 100511450), (4, 50255725), (5, 40204580), (10, 20102290), (13, 15463300), (20, 10051145), (25, 8040916), (26, 7731650), (50, 4020458), (52, 3865825), (65, 3092660), (100, 2010229), (130, 1546330), (239, 841100), (260, 773165), (325, 618532), (478, 420550), (647, 310700), (650, 309266), (956, 210275), (1195, 168220), (1294, 155350), (1300, 154633), (2390, 84110), (2588, 77675), (3107, 64700), (3235, 62140), (4780, 42055), (5975, 33644), (6214, 32350), (6470, 31070), (8411, 23900), (11950, 16822), (12428, 16175), (12940, 15535)]