220318360

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{617}}^1$

素因数の和:820

約数の個数: 64

約数和(自身を含む): 507254400

約数和(自身を除く): 286936040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 113, 158, 226, 316, 395, 452, 565, 617, 632, 790, 904, 1130, 1234, 1580, 2260, 2468, 3085, 3160, 4520, 4936, 6170, 8927, 12340, 17854, 24680, 35708, 44635, 48743, 69721, 71416, 89270, 97486, 139442, 178540, 194972, 243715, 278884, 348605, 357080, 389944, 487430, 557768, 697210, 974860, 1394420, 1949720, 2788840, 5507959, 11015918, 22031836, 27539795, 44063672, 55079590, 110159180, 220318360]

約数ペア:

[(1, 220318360), (2, 110159180), (4, 55079590), (5, 44063672), (8, 27539795), (10, 22031836), (20, 11015918), (40, 5507959), (79, 2788840), (113, 1949720), (158, 1394420), (226, 974860), (316, 697210), (395, 557768), (452, 487430), (565, 389944), (617, 357080), (632, 348605), (790, 278884), (904, 243715), (1130, 194972), (1234, 178540), (1580, 139442), (2260, 97486), (2468, 89270), (3085, 71416), (3160, 69721), (4520, 48743), (4936, 44635), (6170, 35708), (8927, 24680), (12340, 17854)]