20515328

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{2357}}^1$

素因数の和:2392

約数の個数: 40

約数和(自身を含む): 43420212

約数和(自身を除く): 22904884

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 1088, 2176, 2357, 4352, 4714, 8704, 9428, 18856, 37712, 40069, 75424, 80138, 150848, 160276, 301696, 320552, 603392, 641104, 1206784, 1282208, 2564416, 5128832, 10257664, 20515328]

約数ペア:

[(1, 20515328), (2, 10257664), (4, 5128832), (8, 2564416), (16, 1282208), (17, 1206784), (32, 641104), (34, 603392), (64, 320552), (68, 301696), (128, 160276), (136, 150848), (256, 80138), (272, 75424), (512, 40069), (544, 37712), (1088, 18856), (2176, 9428), (2357, 8704), (4352, 4714)]