28016040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17959}}^1$

素因数の和:17986

約数の個数: 64

約数和(自身を含む): 90518400

約数和(自身を除く): 62502360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 17959, 35918, 53877, 71836, 89795, 107754, 143672, 179590, 215508, 233467, 269385, 359180, 431016, 466934, 538770, 700401, 718360, 933868, 1077540, 1167335, 1400802, 1867736, 2155080, 2334670, 2801604, 3502005, 4669340, 5603208, 7004010, 9338680, 14008020, 28016040]

約数ペア:

[(1, 28016040), (2, 14008020), (3, 9338680), (4, 7004010), (5, 5603208), (6, 4669340), (8, 3502005), (10, 2801604), (12, 2334670), (13, 2155080), (15, 1867736), (20, 1400802), (24, 1167335), (26, 1077540), (30, 933868), (39, 718360), (40, 700401), (52, 538770), (60, 466934), (65, 431016), (78, 359180), (104, 269385), (120, 233467), (130, 215508), (156, 179590), (195, 143672), (260, 107754), (312, 89795), (390, 71836), (520, 53877), (780, 35918), (1560, 17959)]