20120656560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{298349}}^1$

素因数の和:298646

約数の個数: 80

約数和(自身を含む): 62596216800

約数和(自身を除く): 42475560240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 281, 562, 843, 1124, 1405, 1686, 2248, 2810, 3372, 4215, 4496, 5620, 6744, 8430, 11240, 13488, 16860, 22480, 33720, 67440, 298349, 596698, 895047, 1193396, 1491745, 1790094, 2386792, 2983490, 3580188, 4475235, 4773584, 5966980, 7160376, 8950470, 11933960, 14320752, 17900940, 23867920, 35801880, 71603760, 83836069, 167672138, 251508207, 335344276, 419180345, 503016414, 670688552, 838360690, 1006032828, 1257541035, 1341377104, 1676721380, 2012065656, 2515082070, 3353442760, 4024131312, 5030164140, 6706885520, 10060328280, 20120656560]

約数ペア:

[(1, 20120656560), (2, 10060328280), (3, 6706885520), (4, 5030164140), (5, 4024131312), (6, 3353442760), (8, 2515082070), (10, 2012065656), (12, 1676721380), (15, 1341377104), (16, 1257541035), (20, 1006032828), (24, 838360690), (30, 670688552), (40, 503016414), (48, 419180345), (60, 335344276), (80, 251508207), (120, 167672138), (240, 83836069), (281, 71603760), (562, 35801880), (843, 23867920), (1124, 17900940), (1405, 14320752), (1686, 11933960), (2248, 8950470), (2810, 7160376), (3372, 5966980), (4215, 4773584), (4496, 4475235), (5620, 3580188), (6744, 2983490), (8430, 2386792), (11240, 1790094), (13488, 1491745), (16860, 1193396), (22480, 895047), (33720, 596698), (67440, 298349)]