215294940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{709}}^1$

素因数の和:972

約数の個数: 144

約数和(自身を含む): 750509760

約数和(自身を除く): 535214820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 241, 252, 315, 420, 482, 630, 709, 723, 964, 1205, 1260, 1418, 1446, 1687, 2127, 2169, 2410, 2836, 2892, 3374, 3545, 3615, 4254, 4338, 4820, 4963, 5061, 6381, 6748, 7090, 7230, 8435, 8508, 8676, 9926, 10122, 10635, 10845, 12762, 14180, 14460, 14889, 15183, 16870, 19852, 20244, 21270, 21690, 24815, 25305, 25524, 29778, 30366, 31905, 33740, 42540, 43380, 44667, 49630, 50610, 59556, 60732, 63810, 74445, 75915, 89334, 99260, 101220, 127620, 148890, 151830, 170869, 178668, 223335, 297780, 303660, 341738, 446670, 512607, 683476, 854345, 893340, 1025214, 1196083, 1537821, 1708690, 2050428, 2392166, 2563035, 3075642, 3417380, 3588249, 4784332, 5126070, 5980415, 6151284, 7176498, 7689105, 10252140, 10764747, 11960830, 14352996, 15378210, 17941245, 21529494, 23921660, 30756420, 35882490, 43058988, 53823735, 71764980, 107647470, 215294940]

約数ペア:

[(1, 215294940), (2, 107647470), (3, 71764980), (4, 53823735), (5, 43058988), (6, 35882490), (7, 30756420), (9, 23921660), (10, 21529494), (12, 17941245), (14, 15378210), (15, 14352996), (18, 11960830), (20, 10764747), (21, 10252140), (28, 7689105), (30, 7176498), (35, 6151284), (36, 5980415), (42, 5126070), (45, 4784332), (60, 3588249), (63, 3417380), (70, 3075642), (84, 2563035), (90, 2392166), (105, 2050428), (126, 1708690), (140, 1537821), (180, 1196083), (210, 1025214), (241, 893340), (252, 854345), (315, 683476), (420, 512607), (482, 446670), (630, 341738), (709, 303660), (723, 297780), (964, 223335), (1205, 178668), (1260, 170869), (1418, 151830), (1446, 148890), (1687, 127620), (2127, 101220), (2169, 99260), (2410, 89334), (2836, 75915), (2892, 74445), (3374, 63810), (3545, 60732), (3615, 59556), (4254, 50610), (4338, 49630), (4820, 44667), (4963, 43380), (5061, 42540), (6381, 33740), (6748, 31905), (7090, 30366), (7230, 29778), (8435, 25524), (8508, 25305), (8676, 24815), (9926, 21690), (10122, 21270), (10635, 20244), (10845, 19852), (12762, 16870), (14180, 15183), (14460, 14889)]