2278100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 5728800

約数和(自身を除く): 3450700

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 109, 110, 190, 209, 218, 220, 275, 380, 418, 436, 475, 545, 550, 836, 950, 1045, 1090, 1100, 1199, 1900, 2071, 2090, 2180, 2398, 2725, 4142, 4180, 4796, 5225, 5450, 5995, 8284, 10355, 10450, 10900, 11990, 20710, 20900, 22781, 23980, 29975, 41420, 45562, 51775, 59950, 91124, 103550, 113905, 119900, 207100, 227810, 455620, 569525, 1139050, 2278100]

約数ペア:

[(1, 2278100), (2, 1139050), (4, 569525), (5, 455620), (10, 227810), (11, 207100), (19, 119900), (20, 113905), (22, 103550), (25, 91124), (38, 59950), (44, 51775), (50, 45562), (55, 41420), (76, 29975), (95, 23980), (100, 22781), (109, 20900), (110, 20710), (190, 11990), (209, 10900), (218, 10450), (220, 10355), (275, 8284), (380, 5995), (418, 5450), (436, 5225), (475, 4796), (545, 4180), (550, 4142), (836, 2725), (950, 2398), (1045, 2180), (1090, 2090), (1100, 2071), (1199, 1900)]