81650920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6827}}^1$

素因数の和:6874

約数の個数: 64

約数和(自身を含む): 206478720

約数和(自身を除く): 124827800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 2392, 2990, 5980, 6827, 11960, 13654, 27308, 34135, 54616, 68270, 88751, 136540, 157021, 177502, 273080, 314042, 355004, 443755, 628084, 710008, 785105, 887510, 1256168, 1570210, 1775020, 2041273, 3140420, 3550040, 4082546, 6280840, 8165092, 10206365, 16330184, 20412730, 40825460, 81650920]

約数ペア:

[(1, 81650920), (2, 40825460), (4, 20412730), (5, 16330184), (8, 10206365), (10, 8165092), (13, 6280840), (20, 4082546), (23, 3550040), (26, 3140420), (40, 2041273), (46, 1775020), (52, 1570210), (65, 1256168), (92, 887510), (104, 785105), (115, 710008), (130, 628084), (184, 443755), (230, 355004), (260, 314042), (299, 273080), (460, 177502), (520, 157021), (598, 136540), (920, 88751), (1196, 68270), (1495, 54616), (2392, 34135), (2990, 27308), (5980, 13654), (6827, 11960)]