28764320

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13829}}^1$

素因数の和:13857

約数の個数: 48

約数和(自身を含む): 73188360

約数和(自身を除く): 44424040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 13829, 27658, 55316, 69145, 110632, 138290, 179777, 221264, 276580, 359554, 442528, 553160, 719108, 898885, 1106320, 1438216, 1797770, 2212640, 2876432, 3595540, 5752864, 7191080, 14382160, 28764320]

約数ペア:

[(1, 28764320), (2, 14382160), (4, 7191080), (5, 5752864), (8, 3595540), (10, 2876432), (13, 2212640), (16, 1797770), (20, 1438216), (26, 1106320), (32, 898885), (40, 719108), (52, 553160), (65, 442528), (80, 359554), (104, 276580), (130, 221264), (160, 179777), (208, 138290), (260, 110632), (416, 69145), (520, 55316), (1040, 27658), (2080, 13829)]