213533920

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18797}}^1$

素因数の和:18883

約数の個数: 48

約数和(自身を含む): 511606368

約数和(自身を除く): 298072448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 11360, 18797, 37594, 75188, 93985, 150376, 187970, 300752, 375940, 601504, 751880, 1334587, 1503760, 2669174, 3007520, 5338348, 6672935, 10676696, 13345870, 21353392, 26691740, 42706784, 53383480, 106766960, 213533920]

約数ペア:

[(1, 213533920), (2, 106766960), (4, 53383480), (5, 42706784), (8, 26691740), (10, 21353392), (16, 13345870), (20, 10676696), (32, 6672935), (40, 5338348), (71, 3007520), (80, 2669174), (142, 1503760), (160, 1334587), (284, 751880), (355, 601504), (568, 375940), (710, 300752), (1136, 187970), (1420, 150376), (2272, 93985), (2840, 75188), (5680, 37594), (11360, 18797)]