407888

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:111

約数の個数: 40

約数和(自身を含む): 890568

約数和(自身を除く): 482680

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 53, 74, 104, 106, 148, 208, 212, 296, 424, 481, 592, 689, 848, 962, 1378, 1924, 1961, 2756, 3848, 3922, 5512, 7696, 7844, 11024, 15688, 25493, 31376, 50986, 101972, 203944, 407888]

約数ペア:

[(1, 407888), (2, 203944), (4, 101972), (8, 50986), (13, 31376), (16, 25493), (26, 15688), (37, 11024), (52, 7844), (53, 7696), (74, 5512), (104, 3922), (106, 3848), (148, 2756), (208, 1961), (212, 1924), (296, 1378), (424, 962), (481, 848), (592, 689)]