18380280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1721}}^1$

素因数の和:1824

約数の個数: 64

約数和(自身を含む): 55792800

約数和(自身を除く): 37412520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 89, 120, 178, 267, 356, 445, 534, 712, 890, 1068, 1335, 1721, 1780, 2136, 2670, 3442, 3560, 5163, 5340, 6884, 8605, 10326, 10680, 13768, 17210, 20652, 25815, 34420, 41304, 51630, 68840, 103260, 153169, 206520, 306338, 459507, 612676, 765845, 919014, 1225352, 1531690, 1838028, 2297535, 3063380, 3676056, 4595070, 6126760, 9190140, 18380280]

約数ペア:

[(1, 18380280), (2, 9190140), (3, 6126760), (4, 4595070), (5, 3676056), (6, 3063380), (8, 2297535), (10, 1838028), (12, 1531690), (15, 1225352), (20, 919014), (24, 765845), (30, 612676), (40, 459507), (60, 306338), (89, 206520), (120, 153169), (178, 103260), (267, 68840), (356, 51630), (445, 41304), (534, 34420), (712, 25815), (890, 20652), (1068, 17210), (1335, 13768), (1721, 10680), (1780, 10326), (2136, 8605), (2670, 6884), (3442, 5340), (3560, 5163)]