205287570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{61}}^2\times {\mathrm{613}}^1$

素因数の和:748

約数の個数: 72

約数和(自身を含む): 543526308

約数和(自身を除く): 338238738

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 61, 90, 122, 183, 305, 366, 549, 610, 613, 915, 1098, 1226, 1830, 1839, 2745, 3065, 3678, 3721, 5490, 5517, 6130, 7442, 9195, 11034, 11163, 18390, 18605, 22326, 27585, 33489, 37210, 37393, 55170, 55815, 66978, 74786, 111630, 112179, 167445, 186965, 224358, 334890, 336537, 373930, 560895, 673074, 1121790, 1682685, 2280973, 3365370, 4561946, 6842919, 11404865, 13685838, 20528757, 22809730, 34214595, 41057514, 68429190, 102643785, 205287570]

約数ペア:

[(1, 205287570), (2, 102643785), (3, 68429190), (5, 41057514), (6, 34214595), (9, 22809730), (10, 20528757), (15, 13685838), (18, 11404865), (30, 6842919), (45, 4561946), (61, 3365370), (90, 2280973), (122, 1682685), (183, 1121790), (305, 673074), (366, 560895), (549, 373930), (610, 336537), (613, 334890), (915, 224358), (1098, 186965), (1226, 167445), (1830, 112179), (1839, 111630), (2745, 74786), (3065, 66978), (3678, 55815), (3721, 55170), (5490, 37393), (5517, 37210), (6130, 33489), (7442, 27585), (9195, 22326), (11034, 18605), (11163, 18390)]