20280448

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 44064000

約数和(自身を除く): 23783552

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 128, 152, 248, 269, 304, 496, 538, 589, 608, 992, 1076, 1178, 1216, 1984, 2152, 2356, 2432, 3968, 4304, 4712, 5111, 8339, 8608, 9424, 10222, 16678, 17216, 18848, 20444, 33356, 34432, 37696, 40888, 66712, 75392, 81776, 133424, 158441, 163552, 266848, 316882, 327104, 533696, 633764, 654208, 1067392, 1267528, 2535056, 5070112, 10140224, 20280448]

約数ペア:

[(1, 20280448), (2, 10140224), (4, 5070112), (8, 2535056), (16, 1267528), (19, 1067392), (31, 654208), (32, 633764), (38, 533696), (62, 327104), (64, 316882), (76, 266848), (124, 163552), (128, 158441), (152, 133424), (248, 81776), (269, 75392), (304, 66712), (496, 40888), (538, 37696), (589, 34432), (608, 33356), (992, 20444), (1076, 18848), (1178, 17216), (1216, 16678), (1984, 10222), (2152, 9424), (2356, 8608), (2432, 8339), (3968, 5111), (4304, 4712)]