402801100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{809}}^1$

素因数の和:1219

約数の個数: 72

約数和(自身を含む): 944939520

約数和(自身を除く): 542138420

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 383, 650, 766, 809, 1300, 1532, 1618, 1915, 3236, 3830, 4045, 4979, 7660, 8090, 9575, 9958, 10517, 16180, 19150, 19916, 20225, 21034, 24895, 38300, 40450, 42068, 49790, 52585, 80900, 99580, 105170, 124475, 210340, 248950, 262925, 309847, 497900, 525850, 619694, 1051700, 1239388, 1549235, 3098470, 4028011, 6196940, 7746175, 8056022, 15492350, 16112044, 20140055, 30984700, 40280110, 80560220, 100700275, 201400550, 402801100]

約数ペア:

[(1, 402801100), (2, 201400550), (4, 100700275), (5, 80560220), (10, 40280110), (13, 30984700), (20, 20140055), (25, 16112044), (26, 15492350), (50, 8056022), (52, 7746175), (65, 6196940), (100, 4028011), (130, 3098470), (260, 1549235), (325, 1239388), (383, 1051700), (650, 619694), (766, 525850), (809, 497900), (1300, 309847), (1532, 262925), (1618, 248950), (1915, 210340), (3236, 124475), (3830, 105170), (4045, 99580), (4979, 80900), (7660, 52585), (8090, 49790), (9575, 42068), (9958, 40450), (10517, 38300), (16180, 24895), (19150, 21034), (19916, 20225)]