20728032

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{977}}^1$

素因数の和:1020

約数の個数: 96

約数和(自身を含む): 62106912

約数和(自身を除く): 41378880

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 32, 34, 39, 48, 51, 52, 68, 78, 96, 102, 104, 136, 156, 204, 208, 221, 272, 312, 408, 416, 442, 544, 624, 663, 816, 884, 977, 1248, 1326, 1632, 1768, 1954, 2652, 2931, 3536, 3908, 5304, 5862, 7072, 7816, 10608, 11724, 12701, 15632, 16609, 21216, 23448, 25402, 31264, 33218, 38103, 46896, 49827, 50804, 66436, 76206, 93792, 99654, 101608, 132872, 152412, 199308, 203216, 215917, 265744, 304824, 398616, 406432, 431834, 531488, 609648, 647751, 797232, 863668, 1219296, 1295502, 1594464, 1727336, 2591004, 3454672, 5182008, 6909344, 10364016, 20728032]

約数ペア:

[(1, 20728032), (2, 10364016), (3, 6909344), (4, 5182008), (6, 3454672), (8, 2591004), (12, 1727336), (13, 1594464), (16, 1295502), (17, 1219296), (24, 863668), (26, 797232), (32, 647751), (34, 609648), (39, 531488), (48, 431834), (51, 406432), (52, 398616), (68, 304824), (78, 265744), (96, 215917), (102, 203216), (104, 199308), (136, 152412), (156, 132872), (204, 101608), (208, 99654), (221, 93792), (272, 76206), (312, 66436), (408, 50804), (416, 49827), (442, 46896), (544, 38103), (624, 33218), (663, 31264), (816, 25402), (884, 23448), (977, 21216), (1248, 16609), (1326, 15632), (1632, 12701), (1768, 11724), (1954, 10608), (2652, 7816), (2931, 7072), (3536, 5862), (3908, 5304)]