389415215

素因数分解:

$5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1\times {\mathrm{881}}^1$

素因数の和:1139

約数の個数: 32

約数和(自身を含む): 545118336

約数和(自身を除く): 155703121

約数列:

[1, 5, 7, 35, 73, 173, 365, 511, 865, 881, 1211, 2555, 4405, 6055, 6167, 12629, 30835, 63145, 64313, 88403, 152413, 321565, 442015, 450191, 762065, 1066891, 2250955, 5334455, 11126149, 55630745, 77883043, 389415215]

約数ペア:

[(1, 389415215), (5, 77883043), (7, 55630745), (35, 11126149), (73, 5334455), (173, 2250955), (365, 1066891), (511, 762065), (865, 450191), (881, 442015), (1211, 321565), (2555, 152413), (4405, 88403), (6055, 64313), (6167, 63145), (12629, 30835)]