15721993720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3217}}^1\times {\mathrm{7187}}^1$

素因数の和:10432

約数の個数: 64

約数和(自身を含む): 37472194080

約数和(自身を除く): 21750200360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 3217, 6434, 7187, 12868, 14374, 16085, 25736, 28748, 32170, 35935, 54689, 57496, 64340, 71870, 109378, 122179, 128680, 143740, 218756, 244358, 273445, 287480, 437512, 488716, 546890, 610895, 977432, 1093780, 1221790, 2187560, 2443580, 4887160, 23120579, 46241158, 92482316, 115602895, 184964632, 231205790, 393049843, 462411580, 786099686, 924823160, 1572199372, 1965249215, 3144398744, 3930498430, 7860996860, 15721993720]

約数ペア:

[(1, 15721993720), (2, 7860996860), (4, 3930498430), (5, 3144398744), (8, 1965249215), (10, 1572199372), (17, 924823160), (20, 786099686), (34, 462411580), (40, 393049843), (68, 231205790), (85, 184964632), (136, 115602895), (170, 92482316), (340, 46241158), (680, 23120579), (3217, 4887160), (6434, 2443580), (7187, 2187560), (12868, 1221790), (14374, 1093780), (16085, 977432), (25736, 610895), (28748, 546890), (32170, 488716), (35935, 437512), (54689, 287480), (57496, 273445), (64340, 244358), (71870, 218756), (109378, 143740), (122179, 128680)]