31291000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:146

約数の個数: 128

約数和(自身を含む): 82555200

約数和(自身を除く): 51264200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 29, 40, 50, 52, 58, 65, 83, 100, 104, 116, 125, 130, 145, 166, 200, 232, 250, 260, 290, 325, 332, 377, 415, 500, 520, 580, 650, 664, 725, 754, 830, 1000, 1079, 1160, 1300, 1450, 1508, 1625, 1660, 1885, 2075, 2158, 2407, 2600, 2900, 3016, 3250, 3320, 3625, 3770, 4150, 4316, 4814, 5395, 5800, 6500, 7250, 7540, 8300, 8632, 9425, 9628, 10375, 10790, 12035, 13000, 14500, 15080, 16600, 18850, 19256, 20750, 21580, 24070, 26975, 29000, 31291, 37700, 41500, 43160, 47125, 48140, 53950, 60175, 62582, 75400, 83000, 94250, 96280, 107900, 120350, 125164, 134875, 156455, 188500, 215800, 240700, 250328, 269750, 300875, 312910, 377000, 481400, 539500, 601750, 625820, 782275, 1079000, 1203500, 1251640, 1564550, 2407000, 3129100, 3911375, 6258200, 7822750, 15645500, 31291000]

約数ペア:

[(1, 31291000), (2, 15645500), (4, 7822750), (5, 6258200), (8, 3911375), (10, 3129100), (13, 2407000), (20, 1564550), (25, 1251640), (26, 1203500), (29, 1079000), (40, 782275), (50, 625820), (52, 601750), (58, 539500), (65, 481400), (83, 377000), (100, 312910), (104, 300875), (116, 269750), (125, 250328), (130, 240700), (145, 215800), (166, 188500), (200, 156455), (232, 134875), (250, 125164), (260, 120350), (290, 107900), (325, 96280), (332, 94250), (377, 83000), (415, 75400), (500, 62582), (520, 60175), (580, 53950), (650, 48140), (664, 47125), (725, 43160), (754, 41500), (830, 37700), (1000, 31291), (1079, 29000), (1160, 26975), (1300, 24070), (1450, 21580), (1508, 20750), (1625, 19256), (1660, 18850), (1885, 16600), (2075, 15080), (2158, 14500), (2407, 13000), (2600, 12035), (2900, 10790), (3016, 10375), (3250, 9628), (3320, 9425), (3625, 8632), (3770, 8300), (4150, 7540), (4316, 7250), (4814, 6500), (5395, 5800)]