19530160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:326

約数の個数: 80

約数和(自身を含む): 49684320

約数和(自身を除く): 30154160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 89, 104, 130, 178, 208, 211, 260, 356, 422, 445, 520, 712, 844, 890, 1040, 1055, 1157, 1424, 1688, 1780, 2110, 2314, 2743, 3376, 3560, 4220, 4628, 5486, 5785, 7120, 8440, 9256, 10972, 11570, 13715, 16880, 18512, 18779, 21944, 23140, 27430, 37558, 43888, 46280, 54860, 75116, 92560, 93895, 109720, 150232, 187790, 219440, 244127, 300464, 375580, 488254, 751160, 976508, 1220635, 1502320, 1953016, 2441270, 3906032, 4882540, 9765080, 19530160]

約数ペア:

[(1, 19530160), (2, 9765080), (4, 4882540), (5, 3906032), (8, 2441270), (10, 1953016), (13, 1502320), (16, 1220635), (20, 976508), (26, 751160), (40, 488254), (52, 375580), (65, 300464), (80, 244127), (89, 219440), (104, 187790), (130, 150232), (178, 109720), (208, 93895), (211, 92560), (260, 75116), (356, 54860), (422, 46280), (445, 43888), (520, 37558), (712, 27430), (844, 23140), (890, 21944), (1040, 18779), (1055, 18512), (1157, 16880), (1424, 13715), (1688, 11570), (1780, 10972), (2110, 9256), (2314, 8440), (2743, 7120), (3376, 5785), (3560, 5486), (4220, 4628)]