221520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:100

約数の個数: 80

約数和(自身を含む): 749952

約数和(自身を除く): 528432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 71, 78, 80, 104, 120, 130, 142, 156, 195, 208, 213, 240, 260, 284, 312, 355, 390, 426, 520, 568, 624, 710, 780, 852, 923, 1040, 1065, 1136, 1420, 1560, 1704, 1846, 2130, 2769, 2840, 3120, 3408, 3692, 4260, 4615, 5538, 5680, 7384, 8520, 9230, 11076, 13845, 14768, 17040, 18460, 22152, 27690, 36920, 44304, 55380, 73840, 110760, 221520]

約数ペア:

[(1, 221520), (2, 110760), (3, 73840), (4, 55380), (5, 44304), (6, 36920), (8, 27690), (10, 22152), (12, 18460), (13, 17040), (15, 14768), (16, 13845), (20, 11076), (24, 9230), (26, 8520), (30, 7384), (39, 5680), (40, 5538), (48, 4615), (52, 4260), (60, 3692), (65, 3408), (71, 3120), (78, 2840), (80, 2769), (104, 2130), (120, 1846), (130, 1704), (142, 1560), (156, 1420), (195, 1136), (208, 1065), (213, 1040), (240, 923), (260, 852), (284, 780), (312, 710), (355, 624), (390, 568), (426, 520)]