165200720

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89783}}^1$

素因数の和:89819

約数の個数: 40

約数和(自身を含む): 400795776

約数和(自身を除く): 235595056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 89783, 179566, 359132, 448915, 718264, 897830, 1436528, 1795660, 2065009, 3591320, 4130018, 7182640, 8260036, 10325045, 16520072, 20650090, 33040144, 41300180, 82600360, 165200720]

約数ペア:

[(1, 165200720), (2, 82600360), (4, 41300180), (5, 33040144), (8, 20650090), (10, 16520072), (16, 10325045), (20, 8260036), (23, 7182640), (40, 4130018), (46, 3591320), (80, 2065009), (92, 1795660), (115, 1436528), (184, 897830), (230, 718264), (368, 448915), (460, 359132), (920, 179566), (1840, 89783)]