28750860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{757}}^1$

素因数の和:983

約数の個数: 72

約数和(自身を含む): 87740016

約数和(自身を除く): 58989156

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 633, 757, 844, 1055, 1266, 1514, 1899, 2110, 2271, 2532, 3028, 3165, 3785, 3798, 4220, 4542, 6330, 6813, 7570, 7596, 9084, 9495, 11355, 12660, 13626, 15140, 18990, 22710, 27252, 34065, 37980, 45420, 68130, 136260, 159727, 319454, 479181, 638908, 798635, 958362, 1437543, 1597270, 1916724, 2395905, 2875086, 3194540, 4791810, 5750172, 7187715, 9583620, 14375430, 28750860]

約数ペア:

[(1, 28750860), (2, 14375430), (3, 9583620), (4, 7187715), (5, 5750172), (6, 4791810), (9, 3194540), (10, 2875086), (12, 2395905), (15, 1916724), (18, 1597270), (20, 1437543), (30, 958362), (36, 798635), (45, 638908), (60, 479181), (90, 319454), (180, 159727), (211, 136260), (422, 68130), (633, 45420), (757, 37980), (844, 34065), (1055, 27252), (1266, 22710), (1514, 18990), (1899, 15140), (2110, 13626), (2271, 12660), (2532, 11355), (3028, 9495), (3165, 9084), (3785, 7596), (3798, 7570), (4220, 6813), (4542, 6330)]