8321620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 18748800

約数和(自身を除く): 10427180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 359, 380, 610, 718, 1159, 1220, 1436, 1795, 2318, 3590, 4636, 5795, 6821, 7180, 11590, 13642, 21899, 23180, 27284, 34105, 43798, 68210, 87596, 109495, 136420, 218990, 416081, 437980, 832162, 1664324, 2080405, 4160810, 8321620]

約数ペア:

[(1, 8321620), (2, 4160810), (4, 2080405), (5, 1664324), (10, 832162), (19, 437980), (20, 416081), (38, 218990), (61, 136420), (76, 109495), (95, 87596), (122, 68210), (190, 43798), (244, 34105), (305, 27284), (359, 23180), (380, 21899), (610, 13642), (718, 11590), (1159, 7180), (1220, 6821), (1436, 5795), (1795, 4636), (2318, 3590)]