15541240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:78

約数の個数: 144

約数和(自身を含む): 43810200

約数和(自身を除く): 28268960

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 19, 20, 22, 26, 38, 40, 44, 52, 55, 65, 76, 88, 95, 104, 110, 121, 130, 143, 152, 169, 190, 209, 220, 242, 247, 260, 286, 338, 380, 418, 440, 484, 494, 520, 572, 605, 676, 715, 760, 836, 845, 968, 988, 1045, 1144, 1210, 1235, 1352, 1430, 1573, 1672, 1690, 1859, 1976, 2090, 2299, 2420, 2470, 2717, 2860, 3146, 3211, 3380, 3718, 4180, 4598, 4840, 4940, 5434, 5720, 6292, 6422, 6760, 7436, 7865, 8360, 9196, 9295, 9880, 10868, 11495, 12584, 12844, 13585, 14872, 15730, 16055, 18392, 18590, 20449, 21736, 22990, 25688, 27170, 29887, 31460, 32110, 35321, 37180, 40898, 45980, 54340, 59774, 62920, 64220, 70642, 74360, 81796, 91960, 102245, 108680, 119548, 128440, 141284, 149435, 163592, 176605, 204490, 239096, 282568, 298870, 353210, 388531, 408980, 597740, 706420, 777062, 817960, 1195480, 1412840, 1554124, 1942655, 3108248, 3885310, 7770620, 15541240]

約数ペア:

[(1, 15541240), (2, 7770620), (4, 3885310), (5, 3108248), (8, 1942655), (10, 1554124), (11, 1412840), (13, 1195480), (19, 817960), (20, 777062), (22, 706420), (26, 597740), (38, 408980), (40, 388531), (44, 353210), (52, 298870), (55, 282568), (65, 239096), (76, 204490), (88, 176605), (95, 163592), (104, 149435), (110, 141284), (121, 128440), (130, 119548), (143, 108680), (152, 102245), (169, 91960), (190, 81796), (209, 74360), (220, 70642), (242, 64220), (247, 62920), (260, 59774), (286, 54340), (338, 45980), (380, 40898), (418, 37180), (440, 35321), (484, 32110), (494, 31460), (520, 29887), (572, 27170), (605, 25688), (676, 22990), (715, 21736), (760, 20449), (836, 18590), (845, 18392), (968, 16055), (988, 15730), (1045, 14872), (1144, 13585), (1210, 12844), (1235, 12584), (1352, 11495), (1430, 10868), (1573, 9880), (1672, 9295), (1690, 9196), (1859, 8360), (1976, 7865), (2090, 7436), (2299, 6760), (2420, 6422), (2470, 6292), (2717, 5720), (2860, 5434), (3146, 4940), (3211, 4840), (3380, 4598), (3718, 4180)]