20851530

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3203}}^1$

素因数の和:3251

約数の個数: 64

約数和(自身を含む): 59056128

約数和(自身を除く): 38204598

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 434, 465, 651, 930, 1085, 1302, 2170, 3203, 3255, 6406, 6510, 9609, 16015, 19218, 22421, 32030, 44842, 48045, 67263, 96090, 99293, 112105, 134526, 198586, 224210, 297879, 336315, 496465, 595758, 672630, 695051, 992930, 1390102, 1489395, 2085153, 2978790, 3475255, 4170306, 6950510, 10425765, 20851530]

約数ペア:

[(1, 20851530), (2, 10425765), (3, 6950510), (5, 4170306), (6, 3475255), (7, 2978790), (10, 2085153), (14, 1489395), (15, 1390102), (21, 992930), (30, 695051), (31, 672630), (35, 595758), (42, 496465), (62, 336315), (70, 297879), (93, 224210), (105, 198586), (155, 134526), (186, 112105), (210, 99293), (217, 96090), (310, 67263), (434, 48045), (465, 44842), (651, 32030), (930, 22421), (1085, 19218), (1302, 16015), (2170, 9609), (3203, 6510), (3255, 6406)]