31428840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1447}}^1$

素因数の和:1642

約数の個数: 64

約数和(自身を含む): 94872960

約数和(自身を除く): 63444120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 181, 362, 543, 724, 905, 1086, 1447, 1448, 1810, 2172, 2715, 2894, 3620, 4341, 4344, 5430, 5788, 7235, 7240, 8682, 10860, 11576, 14470, 17364, 21705, 21720, 28940, 34728, 43410, 57880, 86820, 173640, 261907, 523814, 785721, 1047628, 1309535, 1571442, 2095256, 2619070, 3142884, 3928605, 5238140, 6285768, 7857210, 10476280, 15714420, 31428840]

約数ペア:

[(1, 31428840), (2, 15714420), (3, 10476280), (4, 7857210), (5, 6285768), (6, 5238140), (8, 3928605), (10, 3142884), (12, 2619070), (15, 2095256), (20, 1571442), (24, 1309535), (30, 1047628), (40, 785721), (60, 523814), (120, 261907), (181, 173640), (362, 86820), (543, 57880), (724, 43410), (905, 34728), (1086, 28940), (1447, 21720), (1448, 21705), (1810, 17364), (2172, 14470), (2715, 11576), (2894, 10860), (3620, 8682), (4341, 7240), (4344, 7235), (5430, 5788)]