2557530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 6728904

約数和(自身を除く): 4171374

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 157, 181, 314, 362, 471, 543, 785, 905, 942, 1086, 1413, 1570, 1629, 1810, 2355, 2715, 2826, 3258, 4710, 5430, 7065, 8145, 14130, 16290, 28417, 56834, 85251, 142085, 170502, 255753, 284170, 426255, 511506, 852510, 1278765, 2557530]

約数ペア:

[(1, 2557530), (2, 1278765), (3, 852510), (5, 511506), (6, 426255), (9, 284170), (10, 255753), (15, 170502), (18, 142085), (30, 85251), (45, 56834), (90, 28417), (157, 16290), (181, 14130), (314, 8145), (362, 7065), (471, 5430), (543, 4710), (785, 3258), (905, 2826), (942, 2715), (1086, 2355), (1413, 1810), (1570, 1629)]