16761580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1249}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 39060000

約数和(自身を除く): 22298420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1249, 1342, 2498, 2684, 3355, 4996, 6245, 6710, 12490, 13420, 13739, 24980, 27478, 54956, 68695, 76189, 137390, 152378, 274780, 304756, 380945, 761890, 838079, 1523780, 1676158, 3352316, 4190395, 8380790, 16761580]

約数ペア:

[(1, 16761580), (2, 8380790), (4, 4190395), (5, 3352316), (10, 1676158), (11, 1523780), (20, 838079), (22, 761890), (44, 380945), (55, 304756), (61, 274780), (110, 152378), (122, 137390), (220, 76189), (244, 68695), (305, 54956), (610, 27478), (671, 24980), (1220, 13739), (1249, 13420), (1342, 12490), (2498, 6710), (2684, 6245), (3355, 4996)]