20265088

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 43696800

約数和(自身を除く): 23431712

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 67, 68, 128, 134, 136, 139, 268, 272, 278, 536, 544, 556, 1072, 1088, 1112, 1139, 2144, 2176, 2224, 2278, 2363, 4288, 4448, 4556, 4726, 8576, 8896, 9112, 9313, 9452, 17792, 18224, 18626, 18904, 36448, 37252, 37808, 72896, 74504, 75616, 145792, 149008, 151232, 158321, 298016, 302464, 316642, 596032, 633284, 1192064, 1266568, 2533136, 5066272, 10132544, 20265088]

約数ペア:

[(1, 20265088), (2, 10132544), (4, 5066272), (8, 2533136), (16, 1266568), (17, 1192064), (32, 633284), (34, 596032), (64, 316642), (67, 302464), (68, 298016), (128, 158321), (134, 151232), (136, 149008), (139, 145792), (268, 75616), (272, 74504), (278, 72896), (536, 37808), (544, 37252), (556, 36448), (1072, 18904), (1088, 18626), (1112, 18224), (1139, 17792), (2144, 9452), (2176, 9313), (2224, 9112), (2278, 8896), (2363, 8576), (4288, 4726), (4448, 4556)]