1771555760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{54949}}^1$

素因数の和:55006

約数の個数: 80

約数和(自身を含む): 4578873600

約数和(自身を除く): 2807317840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 32240, 54949, 109898, 219796, 274745, 439592, 549490, 714337, 879184, 1098980, 1428674, 1703419, 2197960, 2857348, 3406838, 3571685, 4395920, 5714696, 6813676, 7143370, 8517095, 11429392, 13627352, 14286740, 17034190, 22144447, 27254704, 28573480, 34068380, 44288894, 57146960, 68136760, 88577788, 110722235, 136273520, 177155576, 221444470, 354311152, 442888940, 885777880, 1771555760]

約数ペア:

[(1, 1771555760), (2, 885777880), (4, 442888940), (5, 354311152), (8, 221444470), (10, 177155576), (13, 136273520), (16, 110722235), (20, 88577788), (26, 68136760), (31, 57146960), (40, 44288894), (52, 34068380), (62, 28573480), (65, 27254704), (80, 22144447), (104, 17034190), (124, 14286740), (130, 13627352), (155, 11429392), (208, 8517095), (248, 7143370), (260, 6813676), (310, 5714696), (403, 4395920), (496, 3571685), (520, 3406838), (620, 2857348), (806, 2197960), (1040, 1703419), (1240, 1428674), (1612, 1098980), (2015, 879184), (2480, 714337), (3224, 549490), (4030, 439592), (6448, 274745), (8060, 219796), (16120, 109898), (32240, 54949)]