20282320

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:260

約数の個数: 80

約数和(自身を含む): 50211072

約数和(自身を除く): 29928752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 73, 80, 92, 115, 146, 151, 184, 230, 292, 302, 365, 368, 460, 584, 604, 730, 755, 920, 1168, 1208, 1460, 1510, 1679, 1840, 2416, 2920, 3020, 3358, 3473, 5840, 6040, 6716, 6946, 8395, 11023, 12080, 13432, 13892, 16790, 17365, 22046, 26864, 27784, 33580, 34730, 44092, 55115, 55568, 67160, 69460, 88184, 110230, 134320, 138920, 176368, 220460, 253529, 277840, 440920, 507058, 881840, 1014116, 1267645, 2028232, 2535290, 4056464, 5070580, 10141160, 20282320]

約数ペア:

[(1, 20282320), (2, 10141160), (4, 5070580), (5, 4056464), (8, 2535290), (10, 2028232), (16, 1267645), (20, 1014116), (23, 881840), (40, 507058), (46, 440920), (73, 277840), (80, 253529), (92, 220460), (115, 176368), (146, 138920), (151, 134320), (184, 110230), (230, 88184), (292, 69460), (302, 67160), (365, 55568), (368, 55115), (460, 44092), (584, 34730), (604, 33580), (730, 27784), (755, 26864), (920, 22046), (1168, 17365), (1208, 16790), (1460, 13892), (1510, 13432), (1679, 12080), (1840, 11023), (2416, 8395), (2920, 6946), (3020, 6716), (3358, 6040), (3473, 5840)]