18996870460

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1489}}^1\times {\mathrm{9521}}^1$

素因数の和:11086

約数の個数: 48

約数和(自身を含む): 40520299680

約数和(自身を除く): 21523429220

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 1489, 2978, 5956, 7445, 9521, 14890, 19042, 29780, 38084, 47605, 95210, 99763, 190420, 199526, 399052, 498815, 637907, 997630, 1275814, 1995260, 2551628, 3189535, 6379070, 12758140, 14176769, 28353538, 56707076, 70883845, 141767690, 283535380, 949843523, 1899687046, 3799374092, 4749217615, 9498435230, 18996870460]

約数ペア:

[(1, 18996870460), (2, 9498435230), (4, 4749217615), (5, 3799374092), (10, 1899687046), (20, 949843523), (67, 283535380), (134, 141767690), (268, 70883845), (335, 56707076), (670, 28353538), (1340, 14176769), (1489, 12758140), (2978, 6379070), (5956, 3189535), (7445, 2551628), (9521, 1995260), (14890, 1275814), (19042, 997630), (29780, 637907), (38084, 498815), (47605, 399052), (95210, 199526), (99763, 190420)]