648180

素因数分解:

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

素因数の和:305

約数の個数: 72

約数和(自身を含む): 2125032

約数和(自身を除く): 1476852

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, 277, 390, 468, 554, 585, 780, 831, 1108, 1170, 1385, 1662, 2340, 2493, 2770, 3324, 3601, 4155, 4986, 5540, 7202, 8310, 9972, 10803, 12465, 14404, 16620, 18005, 21606, 24930, 32409, 36010, 43212, 49860, 54015, 64818, 72020, 108030, 129636, 162045, 216060, 324090, 648180]

約数ペア:

[(1, 648180), (2, 324090), (3, 216060), (4, 162045), (5, 129636), (6, 108030), (9, 72020), (10, 64818), (12, 54015), (13, 49860), (15, 43212), (18, 36010), (20, 32409), (26, 24930), (30, 21606), (36, 18005), (39, 16620), (45, 14404), (52, 12465), (60, 10803), (65, 9972), (78, 8310), (90, 7202), (117, 5540), (130, 4986), (156, 4155), (180, 3601), (195, 3324), (234, 2770), (260, 2493), (277, 2340), (390, 1662), (468, 1385), (554, 1170), (585, 1108), (780, 831)]