11984826980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1205717}}^1$

素因数の和:1205804

約数の個数: 48

約数和(自身を含む): 29168729856

約数和(自身を除く): 17183902876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 1205717, 2411434, 4822868, 6028585, 8440019, 12057170, 16880038, 24114340, 33760076, 42200095, 84400190, 85605907, 168800380, 171211814, 342423628, 428029535, 599241349, 856059070, 1198482698, 1712118140, 2396965396, 2996206745, 5992413490, 11984826980]

約数ペア:

[(1, 11984826980), (2, 5992413490), (4, 2996206745), (5, 2396965396), (7, 1712118140), (10, 1198482698), (14, 856059070), (20, 599241349), (28, 428029535), (35, 342423628), (70, 171211814), (71, 168800380), (140, 85605907), (142, 84400190), (284, 42200095), (355, 33760076), (497, 24114340), (710, 16880038), (994, 12057170), (1420, 8440019), (1988, 6028585), (2485, 4822868), (4970, 2411434), (9940, 1205717)]