87521720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{107}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 236575080

約数和(自身を除く): 149053360

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 107, 110, 121, 130, 143, 169, 214, 220, 242, 260, 286, 338, 428, 440, 484, 520, 535, 572, 605, 676, 715, 845, 856, 968, 1070, 1144, 1177, 1210, 1352, 1391, 1430, 1573, 1690, 1859, 2140, 2354, 2420, 2782, 2860, 3146, 3380, 3718, 4280, 4708, 4840, 5564, 5720, 5885, 6292, 6760, 6955, 7436, 7865, 9295, 9416, 11128, 11770, 12584, 12947, 13910, 14872, 15301, 15730, 18083, 18590, 20449, 23540, 25894, 27820, 30602, 31460, 36166, 37180, 40898, 47080, 51788, 55640, 61204, 62920, 64735, 72332, 74360, 76505, 81796, 90415, 102245, 103576, 122408, 129470, 144664, 153010, 163592, 168311, 180830, 198913, 204490, 258940, 306020, 336622, 361660, 397826, 408980, 517880, 612040, 673244, 723320, 795652, 817960, 841555, 994565, 1346488, 1591304, 1683110, 1989130, 2188043, 3366220, 3978260, 4376086, 6732440, 7956520, 8752172, 10940215, 17504344, 21880430, 43760860, 87521720]

約数ペア:

[(1, 87521720), (2, 43760860), (4, 21880430), (5, 17504344), (8, 10940215), (10, 8752172), (11, 7956520), (13, 6732440), (20, 4376086), (22, 3978260), (26, 3366220), (40, 2188043), (44, 1989130), (52, 1683110), (55, 1591304), (65, 1346488), (88, 994565), (104, 841555), (107, 817960), (110, 795652), (121, 723320), (130, 673244), (143, 612040), (169, 517880), (214, 408980), (220, 397826), (242, 361660), (260, 336622), (286, 306020), (338, 258940), (428, 204490), (440, 198913), (484, 180830), (520, 168311), (535, 163592), (572, 153010), (605, 144664), (676, 129470), (715, 122408), (845, 103576), (856, 102245), (968, 90415), (1070, 81796), (1144, 76505), (1177, 74360), (1210, 72332), (1352, 64735), (1391, 62920), (1430, 61204), (1573, 55640), (1690, 51788), (1859, 47080), (2140, 40898), (2354, 37180), (2420, 36166), (2782, 31460), (2860, 30602), (3146, 27820), (3380, 25894), (3718, 23540), (4280, 20449), (4708, 18590), (4840, 18083), (5564, 15730), (5720, 15301), (5885, 14872), (6292, 13910), (6760, 12947), (6955, 12584), (7436, 11770), (7865, 11128), (9295, 9416)]