20115196672

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{37831}}^1$

素因数の和:37945

約数の個数: 72

約数和(自身を含む): 42066762752

約数和(自身を除く): 21951566080

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 67, 124, 128, 134, 248, 256, 268, 496, 536, 992, 1072, 1984, 2077, 2144, 3968, 4154, 4288, 7936, 8308, 8576, 16616, 17152, 33232, 37831, 66464, 75662, 132928, 151324, 265856, 302648, 531712, 605296, 1172761, 1210592, 2345522, 2421184, 2534677, 4691044, 4842368, 5069354, 9382088, 9684736, 10138708, 18764176, 20277416, 37528352, 40554832, 75056704, 78574987, 81109664, 150113408, 157149974, 162219328, 300226816, 314299948, 324438656, 628599896, 648877312, 1257199792, 2514399584, 5028799168, 10057598336, 20115196672]

約数ペア:

[(1, 20115196672), (2, 10057598336), (4, 5028799168), (8, 2514399584), (16, 1257199792), (31, 648877312), (32, 628599896), (62, 324438656), (64, 314299948), (67, 300226816), (124, 162219328), (128, 157149974), (134, 150113408), (248, 81109664), (256, 78574987), (268, 75056704), (496, 40554832), (536, 37528352), (992, 20277416), (1072, 18764176), (1984, 10138708), (2077, 9684736), (2144, 9382088), (3968, 5069354), (4154, 4842368), (4288, 4691044), (7936, 2534677), (8308, 2421184), (8576, 2345522), (16616, 1210592), (17152, 1172761), (33232, 605296), (37831, 531712), (66464, 302648), (75662, 265856), (132928, 151324)]