221121760

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:564

約数の個数: 96

約数和(自身を含む): 545529600

約数和(自身を除く): 324407840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 109, 124, 155, 160, 218, 248, 310, 409, 436, 496, 545, 620, 818, 872, 992, 1090, 1240, 1636, 1744, 2045, 2180, 2480, 3272, 3379, 3488, 4090, 4360, 4960, 6544, 6758, 8180, 8720, 12679, 13088, 13516, 16360, 16895, 17440, 25358, 27032, 32720, 33790, 44581, 50716, 54064, 63395, 65440, 67580, 89162, 101432, 108128, 126790, 135160, 178324, 202864, 222905, 253580, 270320, 356648, 405728, 445810, 507160, 540640, 713296, 891620, 1014320, 1382011, 1426592, 1783240, 2028640, 2764022, 3566480, 5528044, 6910055, 7132960, 11056088, 13820110, 22112176, 27640220, 44224352, 55280440, 110560880, 221121760]

約数ペア:

[(1, 221121760), (2, 110560880), (4, 55280440), (5, 44224352), (8, 27640220), (10, 22112176), (16, 13820110), (20, 11056088), (31, 7132960), (32, 6910055), (40, 5528044), (62, 3566480), (80, 2764022), (109, 2028640), (124, 1783240), (155, 1426592), (160, 1382011), (218, 1014320), (248, 891620), (310, 713296), (409, 540640), (436, 507160), (496, 445810), (545, 405728), (620, 356648), (818, 270320), (872, 253580), (992, 222905), (1090, 202864), (1240, 178324), (1636, 135160), (1744, 126790), (2045, 108128), (2180, 101432), (2480, 89162), (3272, 67580), (3379, 65440), (3488, 63395), (4090, 54064), (4360, 50716), (4960, 44581), (6544, 33790), (6758, 32720), (8180, 27032), (8720, 25358), (12679, 17440), (13088, 16895), (13516, 16360)]