640497664

素因数分解:

$2^{11}\times {\mathrm{312743}}^1$

素因数の和:312765

約数の個数: 24

約数和(自身を含む): 1280686680

約数和(自身を除く): 640189016

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 312743, 625486, 1250972, 2501944, 5003888, 10007776, 20015552, 40031104, 80062208, 160124416, 320248832, 640497664]

約数ペア:

[(1, 640497664), (2, 320248832), (4, 160124416), (8, 80062208), (16, 40031104), (32, 20015552), (64, 10007776), (128, 5003888), (256, 2501944), (512, 1250972), (1024, 625486), (2048, 312743)]