40542800

素因数分解:

$2^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1283}}^1$

素因数の和:1380

約数の個数: 60

約数和(自身を含む): 98713920

約数和(自身を除く): 58171120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 158, 200, 316, 395, 400, 632, 790, 1264, 1283, 1580, 1975, 2566, 3160, 3950, 5132, 6320, 6415, 7900, 10264, 12830, 15800, 20528, 25660, 31600, 32075, 51320, 64150, 101357, 102640, 128300, 202714, 256600, 405428, 506785, 513200, 810856, 1013570, 1621712, 2027140, 2533925, 4054280, 5067850, 8108560, 10135700, 20271400, 40542800]

約数ペア:

[(1, 40542800), (2, 20271400), (4, 10135700), (5, 8108560), (8, 5067850), (10, 4054280), (16, 2533925), (20, 2027140), (25, 1621712), (40, 1013570), (50, 810856), (79, 513200), (80, 506785), (100, 405428), (158, 256600), (200, 202714), (316, 128300), (395, 102640), (400, 101357), (632, 64150), (790, 51320), (1264, 32075), (1283, 31600), (1580, 25660), (1975, 20528), (2566, 15800), (3160, 12830), (3950, 10264), (5132, 7900), (6320, 6415)]