1635920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2$

素因数の和:61

約数の個数: 90

約数和(自身を含む): 4527054

約数和(自身を除く): 2891134

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 121, 130, 143, 169, 176, 208, 220, 242, 260, 286, 338, 440, 484, 520, 572, 605, 676, 715, 845, 880, 968, 1040, 1144, 1210, 1352, 1430, 1573, 1690, 1859, 1936, 2288, 2420, 2704, 2860, 3146, 3380, 3718, 4840, 5720, 6292, 6760, 7436, 7865, 9295, 9680, 11440, 12584, 13520, 14872, 15730, 18590, 20449, 25168, 29744, 31460, 37180, 40898, 62920, 74360, 81796, 102245, 125840, 148720, 163592, 204490, 327184, 408980, 817960, 1635920]

約数ペア:

[(1, 1635920), (2, 817960), (4, 408980), (5, 327184), (8, 204490), (10, 163592), (11, 148720), (13, 125840), (16, 102245), (20, 81796), (22, 74360), (26, 62920), (40, 40898), (44, 37180), (52, 31460), (55, 29744), (65, 25168), (80, 20449), (88, 18590), (104, 15730), (110, 14872), (121, 13520), (130, 12584), (143, 11440), (169, 9680), (176, 9295), (208, 7865), (220, 7436), (242, 6760), (260, 6292), (286, 5720), (338, 4840), (440, 3718), (484, 3380), (520, 3146), (572, 2860), (605, 2704), (676, 2420), (715, 2288), (845, 1936), (880, 1859), (968, 1690), (1040, 1573), (1144, 1430), (1210, 1352)]