15386980

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2243}}^1$

素因数の和:2273

約数の個数: 48

約数和(自身を含む): 37699200

約数和(自身を除く): 22312220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2243, 3430, 4486, 6860, 8972, 11215, 15701, 22430, 31402, 44860, 62804, 78505, 109907, 157010, 219814, 314020, 439628, 549535, 769349, 1099070, 1538698, 2198140, 3077396, 3846745, 7693490, 15386980]

約数ペア:

[(1, 15386980), (2, 7693490), (4, 3846745), (5, 3077396), (7, 2198140), (10, 1538698), (14, 1099070), (20, 769349), (28, 549535), (35, 439628), (49, 314020), (70, 219814), (98, 157010), (140, 109907), (196, 78505), (245, 62804), (343, 44860), (490, 31402), (686, 22430), (980, 15701), (1372, 11215), (1715, 8972), (2243, 6860), (3430, 4486)]