20158871816

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{331}}^1\times {\mathrm{601}}^1$

素因数の和:1230

約数の個数: 64

約数和(自身を含む): 38853561600

約数和(自身を除く): 18694689784

約数列:

[1, 2, 4, 8, 53, 106, 212, 239, 331, 424, 478, 601, 662, 956, 1202, 1324, 1912, 2404, 2648, 4808, 12667, 17543, 25334, 31853, 35086, 50668, 63706, 70172, 79109, 101336, 127412, 140344, 143639, 158218, 198931, 254824, 287278, 316436, 397862, 574556, 632872, 795724, 1149112, 1591448, 4192777, 7612867, 8385554, 10543343, 15225734, 16771108, 21086686, 30451468, 33542216, 42173372, 47544509, 60902936, 84346744, 95089018, 190178036, 380356072, 2519858977, 5039717954, 10079435908, 20158871816]

約数ペア:

[(1, 20158871816), (2, 10079435908), (4, 5039717954), (8, 2519858977), (53, 380356072), (106, 190178036), (212, 95089018), (239, 84346744), (331, 60902936), (424, 47544509), (478, 42173372), (601, 33542216), (662, 30451468), (956, 21086686), (1202, 16771108), (1324, 15225734), (1912, 10543343), (2404, 8385554), (2648, 7612867), (4808, 4192777), (12667, 1591448), (17543, 1149112), (25334, 795724), (31853, 632872), (35086, 574556), (50668, 397862), (63706, 316436), (70172, 287278), (79109, 254824), (101336, 198931), (127412, 158218), (140344, 143639)]