8203780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 18768960

約数和(自身を除く): 10565180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 227, 260, 278, 454, 556, 695, 908, 1135, 1390, 1807, 2270, 2780, 2951, 3614, 4540, 5902, 7228, 9035, 11804, 14755, 18070, 29510, 31553, 36140, 59020, 63106, 126212, 157765, 315530, 410189, 631060, 820378, 1640756, 2050945, 4101890, 8203780]

約数ペア:

[(1, 8203780), (2, 4101890), (4, 2050945), (5, 1640756), (10, 820378), (13, 631060), (20, 410189), (26, 315530), (52, 157765), (65, 126212), (130, 63106), (139, 59020), (227, 36140), (260, 31553), (278, 29510), (454, 18070), (556, 14755), (695, 11804), (908, 9035), (1135, 7228), (1390, 5902), (1807, 4540), (2270, 3614), (2780, 2951)]