256445520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{28879}}^1$

素因数の和:28932

約数の個数: 80

約数和(自身を含む): 816495360

約数和(自身を除く): 560049840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 48, 60, 74, 80, 111, 120, 148, 185, 222, 240, 296, 370, 444, 555, 592, 740, 888, 1110, 1480, 1776, 2220, 2960, 4440, 8880, 28879, 57758, 86637, 115516, 144395, 173274, 231032, 288790, 346548, 433185, 462064, 577580, 693096, 866370, 1068523, 1155160, 1386192, 1732740, 2137046, 2310320, 3205569, 3465480, 4274092, 5342615, 6411138, 6930960, 8548184, 10685230, 12822276, 16027845, 17096368, 21370460, 25644552, 32055690, 42740920, 51289104, 64111380, 85481840, 128222760, 256445520]

約数ペア:

[(1, 256445520), (2, 128222760), (3, 85481840), (4, 64111380), (5, 51289104), (6, 42740920), (8, 32055690), (10, 25644552), (12, 21370460), (15, 17096368), (16, 16027845), (20, 12822276), (24, 10685230), (30, 8548184), (37, 6930960), (40, 6411138), (48, 5342615), (60, 4274092), (74, 3465480), (80, 3205569), (111, 2310320), (120, 2137046), (148, 1732740), (185, 1386192), (222, 1155160), (240, 1068523), (296, 866370), (370, 693096), (444, 577580), (555, 462064), (592, 433185), (740, 346548), (888, 288790), (1110, 231032), (1480, 173274), (1776, 144395), (2220, 115516), (2960, 86637), (4440, 57758), (8880, 28879)]