129291380

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1\times {\mathrm{431}}^1$

素因数の和:776

約数の個数: 48

約数和(自身を含む): 278256384

約数和(自身を除く): 148965004

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 283, 431, 530, 566, 862, 1060, 1132, 1415, 1724, 2155, 2830, 4310, 5660, 8620, 14999, 22843, 29998, 45686, 59996, 74995, 91372, 114215, 121973, 149990, 228430, 243946, 299980, 456860, 487892, 609865, 1219730, 2439460, 6464569, 12929138, 25858276, 32322845, 64645690, 129291380]

約数ペア:

[(1, 129291380), (2, 64645690), (4, 32322845), (5, 25858276), (10, 12929138), (20, 6464569), (53, 2439460), (106, 1219730), (212, 609865), (265, 487892), (283, 456860), (431, 299980), (530, 243946), (566, 228430), (862, 149990), (1060, 121973), (1132, 114215), (1415, 91372), (1724, 74995), (2155, 59996), (2830, 45686), (4310, 29998), (5660, 22843), (8620, 14999)]