161488720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{613}}^1$

素因数の和:752

約数の個数: 80

約数和(自身を含む): 390577680

約数和(自身を除く): 229088960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 89, 148, 178, 185, 296, 356, 370, 445, 592, 613, 712, 740, 890, 1226, 1424, 1480, 1780, 2452, 2960, 3065, 3293, 3560, 4904, 6130, 6586, 7120, 9808, 12260, 13172, 16465, 22681, 24520, 26344, 32930, 45362, 49040, 52688, 54557, 65860, 90724, 109114, 113405, 131720, 181448, 218228, 226810, 263440, 272785, 362896, 436456, 453620, 545570, 872912, 907240, 1091140, 1814480, 2018609, 2182280, 4037218, 4364560, 8074436, 10093045, 16148872, 20186090, 32297744, 40372180, 80744360, 161488720]

約数ペア:

[(1, 161488720), (2, 80744360), (4, 40372180), (5, 32297744), (8, 20186090), (10, 16148872), (16, 10093045), (20, 8074436), (37, 4364560), (40, 4037218), (74, 2182280), (80, 2018609), (89, 1814480), (148, 1091140), (178, 907240), (185, 872912), (296, 545570), (356, 453620), (370, 436456), (445, 362896), (592, 272785), (613, 263440), (712, 226810), (740, 218228), (890, 181448), (1226, 131720), (1424, 113405), (1480, 109114), (1780, 90724), (2452, 65860), (2960, 54557), (3065, 52688), (3293, 49040), (3560, 45362), (4904, 32930), (6130, 26344), (6586, 24520), (7120, 22681), (9808, 16465), (12260, 13172)]