215497780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 496419840

約数和(自身を除く): 280922060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 79, 85, 113, 142, 158, 170, 226, 284, 316, 340, 355, 395, 452, 565, 710, 790, 1130, 1207, 1343, 1420, 1580, 1921, 2260, 2414, 2686, 3842, 4828, 5372, 5609, 6035, 6715, 7684, 8023, 8927, 9605, 11218, 12070, 13430, 16046, 17854, 19210, 22436, 24140, 26860, 28045, 32092, 35708, 38420, 40115, 44635, 56090, 80230, 89270, 95353, 112180, 136391, 151759, 160460, 178540, 190706, 272782, 303518, 381412, 476765, 545564, 607036, 633817, 681955, 758795, 953530, 1267634, 1363910, 1517590, 1907060, 2535268, 2727820, 3035180, 3169085, 6338170, 10774889, 12676340, 21549778, 43099556, 53874445, 107748890, 215497780]

約数ペア:

[(1, 215497780), (2, 107748890), (4, 53874445), (5, 43099556), (10, 21549778), (17, 12676340), (20, 10774889), (34, 6338170), (68, 3169085), (71, 3035180), (79, 2727820), (85, 2535268), (113, 1907060), (142, 1517590), (158, 1363910), (170, 1267634), (226, 953530), (284, 758795), (316, 681955), (340, 633817), (355, 607036), (395, 545564), (452, 476765), (565, 381412), (710, 303518), (790, 272782), (1130, 190706), (1207, 178540), (1343, 160460), (1420, 151759), (1580, 136391), (1921, 112180), (2260, 95353), (2414, 89270), (2686, 80230), (3842, 56090), (4828, 44635), (5372, 40115), (5609, 38420), (6035, 35708), (6715, 32092), (7684, 28045), (8023, 26860), (8927, 24140), (9605, 22436), (11218, 19210), (12070, 17854), (13430, 16046)]