27799720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{277}}^1$

素因数の和:494

約数の個数: 64

約数和(自身を含む): 67954320

約数和(自身を除く): 40154600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 193, 260, 277, 386, 520, 554, 772, 965, 1108, 1385, 1544, 1930, 2216, 2509, 2770, 3601, 3860, 5018, 5540, 7202, 7720, 10036, 11080, 12545, 14404, 18005, 20072, 25090, 28808, 36010, 50180, 53461, 72020, 100360, 106922, 144040, 213844, 267305, 427688, 534610, 694993, 1069220, 1389986, 2138440, 2779972, 3474965, 5559944, 6949930, 13899860, 27799720]

約数ペア:

[(1, 27799720), (2, 13899860), (4, 6949930), (5, 5559944), (8, 3474965), (10, 2779972), (13, 2138440), (20, 1389986), (26, 1069220), (40, 694993), (52, 534610), (65, 427688), (104, 267305), (130, 213844), (193, 144040), (260, 106922), (277, 100360), (386, 72020), (520, 53461), (554, 50180), (772, 36010), (965, 28808), (1108, 25090), (1385, 20072), (1544, 18005), (1930, 14404), (2216, 12545), (2509, 11080), (2770, 10036), (3601, 7720), (3860, 7202), (5018, 5540)]