164787320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{132893}}^1$

素因数の和:132935

約数の個数: 32

約数和(自身を含む): 382734720

約数和(自身を除く): 217947400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 132893, 265786, 531572, 664465, 1063144, 1328930, 2657860, 4119683, 5315720, 8239366, 16478732, 20598415, 32957464, 41196830, 82393660, 164787320]

約数ペア:

[(1, 164787320), (2, 82393660), (4, 41196830), (5, 32957464), (8, 20598415), (10, 16478732), (20, 8239366), (31, 5315720), (40, 4119683), (62, 2657860), (124, 1328930), (155, 1063144), (248, 664465), (310, 531572), (620, 265786), (1240, 132893)]