161721960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{4973}}^1$

素因数の和:5258

約数の個数: 64

約数和(自身を含む): 487054080

約数和(自身を除く): 325332120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 271, 542, 813, 1084, 1355, 1626, 2168, 2710, 3252, 4065, 4973, 5420, 6504, 8130, 9946, 10840, 14919, 16260, 19892, 24865, 29838, 32520, 39784, 49730, 59676, 74595, 99460, 119352, 149190, 198920, 298380, 596760, 1347683, 2695366, 4043049, 5390732, 6738415, 8086098, 10781464, 13476830, 16172196, 20215245, 26953660, 32344392, 40430490, 53907320, 80860980, 161721960]

約数ペア:

[(1, 161721960), (2, 80860980), (3, 53907320), (4, 40430490), (5, 32344392), (6, 26953660), (8, 20215245), (10, 16172196), (12, 13476830), (15, 10781464), (20, 8086098), (24, 6738415), (30, 5390732), (40, 4043049), (60, 2695366), (120, 1347683), (271, 596760), (542, 298380), (813, 198920), (1084, 149190), (1355, 119352), (1626, 99460), (2168, 74595), (2710, 59676), (3252, 49730), (4065, 39784), (4973, 32520), (5420, 29838), (6504, 24865), (8130, 19892), (9946, 16260), (10840, 14919)]