20694380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2789}}^1$

素因数の和:2858

約数の個数: 48

約数和(自身を含む): 50621760

約数和(自身を除く): 29927380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 2789, 3710, 5578, 7420, 11156, 13945, 19523, 27890, 39046, 55780, 78092, 97615, 147817, 195230, 295634, 390460, 591268, 739085, 1034719, 1478170, 2069438, 2956340, 4138876, 5173595, 10347190, 20694380]

約数ペア:

[(1, 20694380), (2, 10347190), (4, 5173595), (5, 4138876), (7, 2956340), (10, 2069438), (14, 1478170), (20, 1034719), (28, 739085), (35, 591268), (53, 390460), (70, 295634), (106, 195230), (140, 147817), (212, 97615), (265, 78092), (371, 55780), (530, 39046), (742, 27890), (1060, 19523), (1484, 13945), (1855, 11156), (2789, 7420), (3710, 5578)]