890991204

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{21379}}^1$

素因数の和:21560

約数の個数: 48

約数和(自身を含む): 2183838720

約数和(自身を除く): 1292847516

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 151, 276, 302, 453, 604, 906, 1812, 3473, 6946, 10419, 13892, 20838, 21379, 41676, 42758, 64137, 85516, 128274, 256548, 491717, 983434, 1475151, 1966868, 2950302, 3228229, 5900604, 6456458, 9684687, 12912916, 19369374, 38738748, 74249267, 148498534, 222747801, 296997068, 445495602, 890991204]

約数ペア:

[(1, 890991204), (2, 445495602), (3, 296997068), (4, 222747801), (6, 148498534), (12, 74249267), (23, 38738748), (46, 19369374), (69, 12912916), (92, 9684687), (138, 6456458), (151, 5900604), (276, 3228229), (302, 2950302), (453, 1966868), (604, 1475151), (906, 983434), (1812, 491717), (3473, 256548), (6946, 128274), (10419, 85516), (13892, 64137), (20838, 42758), (21379, 41676)]