878346920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{19381}}^1$

素因数の和:19506

約数の個数: 64

約数和(自身を含む): 2176986240

約数和(自身を除く): 1298639320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 103, 110, 206, 220, 412, 440, 515, 824, 1030, 1133, 2060, 2266, 4120, 4532, 5665, 9064, 11330, 19381, 22660, 38762, 45320, 77524, 96905, 155048, 193810, 213191, 387620, 426382, 775240, 852764, 1065955, 1705528, 1996243, 2131910, 3992486, 4263820, 7984972, 8527640, 9981215, 15969944, 19962430, 21958673, 39924860, 43917346, 79849720, 87834692, 109793365, 175669384, 219586730, 439173460, 878346920]

約数ペア:

[(1, 878346920), (2, 439173460), (4, 219586730), (5, 175669384), (8, 109793365), (10, 87834692), (11, 79849720), (20, 43917346), (22, 39924860), (40, 21958673), (44, 19962430), (55, 15969944), (88, 9981215), (103, 8527640), (110, 7984972), (206, 4263820), (220, 3992486), (412, 2131910), (440, 1996243), (515, 1705528), (824, 1065955), (1030, 852764), (1133, 775240), (2060, 426382), (2266, 387620), (4120, 213191), (4532, 193810), (5665, 155048), (9064, 96905), (11330, 77524), (19381, 45320), (22660, 38762)]