9150020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 22344000

約数和(自身を除く): 13193980

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 199, 209, 220, 242, 380, 398, 418, 484, 605, 796, 836, 995, 1045, 1210, 1990, 2090, 2189, 2299, 2420, 3781, 3980, 4180, 4378, 4598, 7562, 8756, 9196, 10945, 11495, 15124, 18905, 21890, 22990, 24079, 37810, 41591, 43780, 45980, 48158, 75620, 83182, 96316, 120395, 166364, 207955, 240790, 415910, 457501, 481580, 831820, 915002, 1830004, 2287505, 4575010, 9150020]

約数ペア:

[(1, 9150020), (2, 4575010), (4, 2287505), (5, 1830004), (10, 915002), (11, 831820), (19, 481580), (20, 457501), (22, 415910), (38, 240790), (44, 207955), (55, 166364), (76, 120395), (95, 96316), (110, 83182), (121, 75620), (190, 48158), (199, 45980), (209, 43780), (220, 41591), (242, 37810), (380, 24079), (398, 22990), (418, 21890), (484, 18905), (605, 15124), (796, 11495), (836, 10945), (995, 9196), (1045, 8756), (1210, 7562), (1990, 4598), (2090, 4378), (2189, 4180), (2299, 3980), (2420, 3781)]