20540448

素因数分解:

$2^5\times 3^2\times {\mathrm{73}}^1\times {\mathrm{977}}^1$

素因数の和:1066

約数の個数: 72

約数和(自身を含む): 59272668

約数和(自身を除く): 38732220

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 73, 96, 144, 146, 219, 288, 292, 438, 584, 657, 876, 977, 1168, 1314, 1752, 1954, 2336, 2628, 2931, 3504, 3908, 5256, 5862, 7008, 7816, 8793, 10512, 11724, 15632, 17586, 21024, 23448, 31264, 35172, 46896, 70344, 71321, 93792, 140688, 142642, 213963, 281376, 285284, 427926, 570568, 641889, 855852, 1141136, 1283778, 1711704, 2282272, 2567556, 3423408, 5135112, 6846816, 10270224, 20540448]

約数ペア:

[(1, 20540448), (2, 10270224), (3, 6846816), (4, 5135112), (6, 3423408), (8, 2567556), (9, 2282272), (12, 1711704), (16, 1283778), (18, 1141136), (24, 855852), (32, 641889), (36, 570568), (48, 427926), (72, 285284), (73, 281376), (96, 213963), (144, 142642), (146, 140688), (219, 93792), (288, 71321), (292, 70344), (438, 46896), (584, 35172), (657, 31264), (876, 23448), (977, 21024), (1168, 17586), (1314, 15632), (1752, 11724), (1954, 10512), (2336, 8793), (2628, 7816), (2931, 7008), (3504, 5862), (3908, 5256)]