13901020

素因数分解:

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

素因数の和:3250

約数の個数: 48

約数和(自身を含む): 34449408

約数和(自身を除く): 20548388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 3203, 4340, 6406, 12812, 16015, 22421, 32030, 44842, 64060, 89684, 99293, 112105, 198586, 224210, 397172, 448420, 496465, 695051, 992930, 1390102, 1985860, 2780204, 3475255, 6950510, 13901020]

約数ペア:

[(1, 13901020), (2, 6950510), (4, 3475255), (5, 2780204), (7, 1985860), (10, 1390102), (14, 992930), (20, 695051), (28, 496465), (31, 448420), (35, 397172), (62, 224210), (70, 198586), (124, 112105), (140, 99293), (155, 89684), (217, 64060), (310, 44842), (434, 32030), (620, 22421), (868, 16015), (1085, 12812), (2170, 6406), (3203, 4340)]