105721520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:550

約数の個数: 80

約数和(自身を含む): 255569952

約数和(自身を除く): 149848432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 73, 80, 86, 146, 172, 215, 292, 344, 365, 421, 430, 584, 688, 730, 842, 860, 1168, 1460, 1684, 1720, 2105, 2920, 3139, 3368, 3440, 4210, 5840, 6278, 6736, 8420, 12556, 15695, 16840, 18103, 25112, 30733, 31390, 33680, 36206, 50224, 61466, 62780, 72412, 90515, 122932, 125560, 144824, 153665, 181030, 245864, 251120, 289648, 307330, 362060, 491728, 614660, 724120, 1229320, 1321519, 1448240, 2458640, 2643038, 5286076, 6607595, 10572152, 13215190, 21144304, 26430380, 52860760, 105721520]

約数ペア:

[(1, 105721520), (2, 52860760), (4, 26430380), (5, 21144304), (8, 13215190), (10, 10572152), (16, 6607595), (20, 5286076), (40, 2643038), (43, 2458640), (73, 1448240), (80, 1321519), (86, 1229320), (146, 724120), (172, 614660), (215, 491728), (292, 362060), (344, 307330), (365, 289648), (421, 251120), (430, 245864), (584, 181030), (688, 153665), (730, 144824), (842, 125560), (860, 122932), (1168, 90515), (1460, 72412), (1684, 62780), (1720, 61466), (2105, 50224), (2920, 36206), (3139, 33680), (3368, 31390), (3440, 30733), (4210, 25112), (5840, 18103), (6278, 16840), (6736, 15695), (8420, 12556)]