211819140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{691}}^1$

素因数の和:850

約数の個数: 144

約数和(自身を含む): 698233536

約数和(自身を除く): 486414396

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 131, 156, 180, 195, 234, 260, 262, 390, 393, 468, 524, 585, 655, 691, 780, 786, 1170, 1179, 1310, 1382, 1572, 1703, 1965, 2073, 2340, 2358, 2620, 2764, 3406, 3455, 3930, 4146, 4716, 5109, 5895, 6219, 6812, 6910, 7860, 8292, 8515, 8983, 10218, 10365, 11790, 12438, 13820, 15327, 17030, 17966, 20436, 20730, 23580, 24876, 25545, 26949, 30654, 31095, 34060, 35932, 41460, 44915, 51090, 53898, 61308, 62190, 76635, 80847, 89830, 90521, 102180, 107796, 124380, 134745, 153270, 161694, 179660, 181042, 269490, 271563, 306540, 323388, 362084, 404235, 452605, 538980, 543126, 808470, 814689, 905210, 1086252, 1176773, 1357815, 1616940, 1629378, 1810420, 2353546, 2715630, 3258756, 3530319, 4073445, 4707092, 5431260, 5883865, 7060638, 8146890, 10590957, 11767730, 14121276, 16293780, 17651595, 21181914, 23535460, 35303190, 42363828, 52954785, 70606380, 105909570, 211819140]

約数ペア:

[(1, 211819140), (2, 105909570), (3, 70606380), (4, 52954785), (5, 42363828), (6, 35303190), (9, 23535460), (10, 21181914), (12, 17651595), (13, 16293780), (15, 14121276), (18, 11767730), (20, 10590957), (26, 8146890), (30, 7060638), (36, 5883865), (39, 5431260), (45, 4707092), (52, 4073445), (60, 3530319), (65, 3258756), (78, 2715630), (90, 2353546), (117, 1810420), (130, 1629378), (131, 1616940), (156, 1357815), (180, 1176773), (195, 1086252), (234, 905210), (260, 814689), (262, 808470), (390, 543126), (393, 538980), (468, 452605), (524, 404235), (585, 362084), (655, 323388), (691, 306540), (780, 271563), (786, 269490), (1170, 181042), (1179, 179660), (1310, 161694), (1382, 153270), (1572, 134745), (1703, 124380), (1965, 107796), (2073, 102180), (2340, 90521), (2358, 89830), (2620, 80847), (2764, 76635), (3406, 62190), (3455, 61308), (3930, 53898), (4146, 51090), (4716, 44915), (5109, 41460), (5895, 35932), (6219, 34060), (6812, 31095), (6910, 30654), (7860, 26949), (8292, 25545), (8515, 24876), (8983, 23580), (10218, 20730), (10365, 20436), (11790, 17966), (12438, 17030), (13820, 15327)]