28728180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12277}}^1$

素因数の和:12305

約数の個数: 72

約数和(自身を含む): 93853032

約数和(自身を除く): 65124852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 12277, 24554, 36831, 49108, 61385, 73662, 110493, 122770, 147324, 159601, 184155, 220986, 245540, 319202, 368310, 441972, 478803, 552465, 638404, 736620, 798005, 957606, 1104930, 1436409, 1596010, 1915212, 2209860, 2394015, 2872818, 3192020, 4788030, 5745636, 7182045, 9576060, 14364090, 28728180]

約数ペア:

[(1, 28728180), (2, 14364090), (3, 9576060), (4, 7182045), (5, 5745636), (6, 4788030), (9, 3192020), (10, 2872818), (12, 2394015), (13, 2209860), (15, 1915212), (18, 1596010), (20, 1436409), (26, 1104930), (30, 957606), (36, 798005), (39, 736620), (45, 638404), (52, 552465), (60, 478803), (65, 441972), (78, 368310), (90, 319202), (117, 245540), (130, 220986), (156, 184155), (180, 159601), (195, 147324), (234, 122770), (260, 110493), (390, 73662), (468, 61385), (585, 49108), (780, 36831), (1170, 24554), (2340, 12277)]