1887378920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{66739}}^1$

素因数の和:66858

約数の個数: 64

約数和(自身を含む): 4901385600

約数和(自身を除く): 3014006680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 707, 808, 1010, 1414, 2020, 2828, 3535, 4040, 5656, 7070, 14140, 28280, 66739, 133478, 266956, 333695, 467173, 533912, 667390, 934346, 1334780, 1868692, 2335865, 2669560, 3737384, 4671730, 6740639, 9343460, 13481278, 18686920, 26962556, 33703195, 47184473, 53925112, 67406390, 94368946, 134812780, 188737892, 235922365, 269625560, 377475784, 471844730, 943689460, 1887378920]

約数ペア:

[(1, 1887378920), (2, 943689460), (4, 471844730), (5, 377475784), (7, 269625560), (8, 235922365), (10, 188737892), (14, 134812780), (20, 94368946), (28, 67406390), (35, 53925112), (40, 47184473), (56, 33703195), (70, 26962556), (101, 18686920), (140, 13481278), (202, 9343460), (280, 6740639), (404, 4671730), (505, 3737384), (707, 2669560), (808, 2335865), (1010, 1868692), (1414, 1334780), (2020, 934346), (2828, 667390), (3535, 533912), (4040, 467173), (5656, 333695), (7070, 266956), (14140, 133478), (28280, 66739)]