164600720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28979}}^1$

素因数の和:29063

約数の個数: 40

約数和(自身を含む): 388100160

約数和(自身を除く): 223499440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 28979, 57958, 115916, 144895, 231832, 289790, 463664, 579580, 1159160, 2057509, 2318320, 4115018, 8230036, 10287545, 16460072, 20575090, 32920144, 41150180, 82300360, 164600720]

約数ペア:

[(1, 164600720), (2, 82300360), (4, 41150180), (5, 32920144), (8, 20575090), (10, 16460072), (16, 10287545), (20, 8230036), (40, 4115018), (71, 2318320), (80, 2057509), (142, 1159160), (284, 579580), (355, 463664), (568, 289790), (710, 231832), (1136, 144895), (1420, 115916), (2840, 57958), (5680, 28979)]