1639791380

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1\times {\mathrm{5039}}^1$

素因数の和:5408

約数の個数: 48

約数和(自身を含む): 3520661760

約数和(自身を除く): 1880870380

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 307, 530, 614, 1060, 1228, 1535, 3070, 5039, 6140, 10078, 16271, 20156, 25195, 32542, 50390, 65084, 81355, 100780, 162710, 267067, 325420, 534134, 1068268, 1335335, 1546973, 2670670, 3093946, 5341340, 6187892, 7734865, 15469730, 30939460, 81989569, 163979138, 327958276, 409947845, 819895690, 1639791380]

約数ペア:

[(1, 1639791380), (2, 819895690), (4, 409947845), (5, 327958276), (10, 163979138), (20, 81989569), (53, 30939460), (106, 15469730), (212, 7734865), (265, 6187892), (307, 5341340), (530, 3093946), (614, 2670670), (1060, 1546973), (1228, 1335335), (1535, 1068268), (3070, 534134), (5039, 325420), (6140, 267067), (10078, 162710), (16271, 100780), (20156, 81355), (25195, 65084), (32542, 50390)]