8479940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{509}}^1$

素因数の和:549

約数の個数: 72

約数和(自身を含む): 21976920

約数和(自身を除く): 13496980

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 509, 595, 833, 980, 1018, 1190, 1666, 2036, 2380, 2545, 3332, 3563, 4165, 5090, 7126, 8330, 8653, 10180, 14252, 16660, 17306, 17815, 24941, 34612, 35630, 43265, 49882, 60571, 71260, 86530, 99764, 121142, 124705, 173060, 242284, 249410, 302855, 423997, 498820, 605710, 847994, 1211420, 1695988, 2119985, 4239970, 8479940]

約数ペア:

[(1, 8479940), (2, 4239970), (4, 2119985), (5, 1695988), (7, 1211420), (10, 847994), (14, 605710), (17, 498820), (20, 423997), (28, 302855), (34, 249410), (35, 242284), (49, 173060), (68, 124705), (70, 121142), (85, 99764), (98, 86530), (119, 71260), (140, 60571), (170, 49882), (196, 43265), (238, 35630), (245, 34612), (340, 24941), (476, 17815), (490, 17306), (509, 16660), (595, 14252), (833, 10180), (980, 8653), (1018, 8330), (1190, 7126), (1666, 5090), (2036, 4165), (2380, 3563), (2545, 3332)]