28984020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37159}}^1$

素因数の和:37184

約数の個数: 48

約数和(自身を含む): 87400320

約数和(自身を除く): 58416300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 37159, 74318, 111477, 148636, 185795, 222954, 371590, 445908, 483067, 557385, 743180, 966134, 1114770, 1449201, 1932268, 2229540, 2415335, 2898402, 4830670, 5796804, 7246005, 9661340, 14492010, 28984020]

約数ペア:

[(1, 28984020), (2, 14492010), (3, 9661340), (4, 7246005), (5, 5796804), (6, 4830670), (10, 2898402), (12, 2415335), (13, 2229540), (15, 1932268), (20, 1449201), (26, 1114770), (30, 966134), (39, 743180), (52, 557385), (60, 483067), (65, 445908), (78, 371590), (130, 222954), (156, 185795), (195, 148636), (260, 111477), (390, 74318), (780, 37159)]