257382684

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{20369}}^1$

素因数の和:20401

約数の個数: 72

約数和(自身を含む): 726638640

約数和(自身を除く): 469255956

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 2106, 3159, 4212, 6318, 12636, 20369, 40738, 61107, 81476, 122214, 183321, 244428, 264797, 366642, 529594, 549963, 733284, 794391, 1059188, 1099926, 1588782, 1649889, 2199852, 2383173, 3177564, 3299778, 4766346, 4949667, 6599556, 7149519, 9532692, 9899334, 14299038, 19798668, 21448557, 28598076, 42897114, 64345671, 85794228, 128691342, 257382684]

約数ペア:

[(1, 257382684), (2, 128691342), (3, 85794228), (4, 64345671), (6, 42897114), (9, 28598076), (12, 21448557), (13, 19798668), (18, 14299038), (26, 9899334), (27, 9532692), (36, 7149519), (39, 6599556), (52, 4949667), (54, 4766346), (78, 3299778), (81, 3177564), (108, 2383173), (117, 2199852), (156, 1649889), (162, 1588782), (234, 1099926), (243, 1059188), (324, 794391), (351, 733284), (468, 549963), (486, 529594), (702, 366642), (972, 264797), (1053, 244428), (1404, 183321), (2106, 122214), (3159, 81476), (4212, 61107), (6318, 40738), (12636, 20369)]