20919296

素因数分解:

$2^{10}\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:710

約数の個数: 44

約数和(自身を含む): 43232640

約数和(自身を除く): 22313344

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 659, 992, 1024, 1318, 1984, 2636, 3968, 5272, 7936, 10544, 15872, 20429, 21088, 31744, 40858, 42176, 81716, 84352, 163432, 168704, 326864, 337408, 653728, 674816, 1307456, 2614912, 5229824, 10459648, 20919296]

約数ペア:

[(1, 20919296), (2, 10459648), (4, 5229824), (8, 2614912), (16, 1307456), (31, 674816), (32, 653728), (62, 337408), (64, 326864), (124, 168704), (128, 163432), (248, 84352), (256, 81716), (496, 42176), (512, 40858), (659, 31744), (992, 21088), (1024, 20429), (1318, 15872), (1984, 10544), (2636, 7936), (3968, 5272)]