400883470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1489}}^1$

素因数の和:1637

約数の個数: 64

約数和(自身を含む): 826056000

約数和(自身を除く): 425172530

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 109, 130, 190, 218, 247, 494, 545, 1090, 1235, 1417, 1489, 2071, 2470, 2834, 2978, 4142, 7085, 7445, 10355, 14170, 14890, 19357, 20710, 26923, 28291, 38714, 53846, 56582, 96785, 134615, 141455, 162301, 193570, 269230, 282910, 324602, 367783, 735566, 811505, 1623010, 1838915, 2109913, 3083719, 3677830, 4219826, 6167438, 10549565, 15418595, 21099130, 30837190, 40088347, 80176694, 200441735, 400883470]

約数ペア:

[(1, 400883470), (2, 200441735), (5, 80176694), (10, 40088347), (13, 30837190), (19, 21099130), (26, 15418595), (38, 10549565), (65, 6167438), (95, 4219826), (109, 3677830), (130, 3083719), (190, 2109913), (218, 1838915), (247, 1623010), (494, 811505), (545, 735566), (1090, 367783), (1235, 324602), (1417, 282910), (1489, 269230), (2071, 193570), (2470, 162301), (2834, 141455), (2978, 134615), (4142, 96785), (7085, 56582), (7445, 53846), (10355, 38714), (14170, 28291), (14890, 26923), (19357, 20710)]