256867440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{4441}}^1$

素因数の和:4698

約数の個数: 80

約数和(自身を含む): 799773216

約数和(自身を除く): 542905776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 241, 482, 723, 964, 1205, 1446, 1928, 2410, 2892, 3615, 3856, 4441, 4820, 5784, 7230, 8882, 9640, 11568, 13323, 14460, 17764, 19280, 22205, 26646, 28920, 35528, 44410, 53292, 57840, 66615, 71056, 88820, 106584, 133230, 177640, 213168, 266460, 355280, 532920, 1065840, 1070281, 2140562, 3210843, 4281124, 5351405, 6421686, 8562248, 10702810, 12843372, 16054215, 17124496, 21405620, 25686744, 32108430, 42811240, 51373488, 64216860, 85622480, 128433720, 256867440]

約数ペア:

[(1, 256867440), (2, 128433720), (3, 85622480), (4, 64216860), (5, 51373488), (6, 42811240), (8, 32108430), (10, 25686744), (12, 21405620), (15, 17124496), (16, 16054215), (20, 12843372), (24, 10702810), (30, 8562248), (40, 6421686), (48, 5351405), (60, 4281124), (80, 3210843), (120, 2140562), (240, 1070281), (241, 1065840), (482, 532920), (723, 355280), (964, 266460), (1205, 213168), (1446, 177640), (1928, 133230), (2410, 106584), (2892, 88820), (3615, 71056), (3856, 66615), (4441, 57840), (4820, 53292), (5784, 44410), (7230, 35528), (8882, 28920), (9640, 26646), (11568, 22205), (13323, 19280), (14460, 17764)]