2808780

素因数分解:

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

素因数の和:315

約数の個数: 72

約数和(自身を含む): 8546832

約数和(自身を除く): 5738052

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 277, 338, 390, 507, 554, 676, 780, 831, 845, 1014, 1108, 1385, 1662, 1690, 2028, 2535, 2770, 3324, 3380, 3601, 4155, 5070, 5540, 7202, 8310, 10140, 10803, 14404, 16620, 18005, 21606, 36010, 43212, 46813, 54015, 72020, 93626, 108030, 140439, 187252, 216060, 234065, 280878, 468130, 561756, 702195, 936260, 1404390, 2808780]

約数ペア:

[(1, 2808780), (2, 1404390), (3, 936260), (4, 702195), (5, 561756), (6, 468130), (10, 280878), (12, 234065), (13, 216060), (15, 187252), (20, 140439), (26, 108030), (30, 93626), (39, 72020), (52, 54015), (60, 46813), (65, 43212), (78, 36010), (130, 21606), (156, 18005), (169, 16620), (195, 14404), (260, 10803), (277, 10140), (338, 8310), (390, 7202), (507, 5540), (554, 5070), (676, 4155), (780, 3601), (831, 3380), (845, 3324), (1014, 2770), (1108, 2535), (1385, 2028), (1662, 1690)]