1997366920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{35591}}^1$

素因数の和:35686

約数の個数: 64

約数和(自身を含む): 4766480640

約数和(自身を除く): 2769113720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 61, 92, 115, 122, 184, 230, 244, 305, 460, 488, 610, 920, 1220, 1403, 2440, 2806, 5612, 7015, 11224, 14030, 28060, 35591, 56120, 71182, 142364, 177955, 284728, 355910, 711820, 818593, 1423640, 1637186, 2171051, 3274372, 4092965, 4342102, 6548744, 8185930, 8684204, 10855255, 16371860, 17368408, 21710510, 32743720, 43421020, 49934173, 86842040, 99868346, 199736692, 249670865, 399473384, 499341730, 998683460, 1997366920]

約数ペア:

[(1, 1997366920), (2, 998683460), (4, 499341730), (5, 399473384), (8, 249670865), (10, 199736692), (20, 99868346), (23, 86842040), (40, 49934173), (46, 43421020), (61, 32743720), (92, 21710510), (115, 17368408), (122, 16371860), (184, 10855255), (230, 8684204), (244, 8185930), (305, 6548744), (460, 4342102), (488, 4092965), (610, 3274372), (920, 2171051), (1220, 1637186), (1403, 1423640), (2440, 818593), (2806, 711820), (5612, 355910), (7015, 284728), (11224, 177955), (14030, 142364), (28060, 71182), (35591, 56120)]