1211111775

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{9769}}^1$

素因数の和:9833

約数の個数: 72

約数和(自身を含む): 2362386000

約数和(自身を除く): 1151274225

約数列:

[1, 3, 5, 9, 15, 19, 25, 29, 45, 57, 75, 87, 95, 145, 171, 225, 261, 285, 435, 475, 551, 725, 855, 1305, 1425, 1653, 2175, 2755, 4275, 4959, 6525, 8265, 9769, 13775, 24795, 29307, 41325, 48845, 87921, 123975, 146535, 185611, 244225, 283301, 439605, 556833, 732675, 849903, 928055, 1416505, 1670499, 2198025, 2549709, 2784165, 4249515, 4640275, 5382719, 7082525, 8352495, 12748545, 13920825, 16148157, 21247575, 26913595, 41762475, 48444471, 63742725, 80740785, 134567975, 242222355, 403703925, 1211111775]

約数ペア:

[(1, 1211111775), (3, 403703925), (5, 242222355), (9, 134567975), (15, 80740785), (19, 63742725), (25, 48444471), (29, 41762475), (45, 26913595), (57, 21247575), (75, 16148157), (87, 13920825), (95, 12748545), (145, 8352495), (171, 7082525), (225, 5382719), (261, 4640275), (285, 4249515), (435, 2784165), (475, 2549709), (551, 2198025), (725, 1670499), (855, 1416505), (1305, 928055), (1425, 849903), (1653, 732675), (2175, 556833), (2755, 439605), (4275, 283301), (4959, 244225), (6525, 185611), (8265, 146535), (9769, 123975), (13775, 87921), (24795, 48845), (29307, 41325)]