397744880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:156

約数の個数: 160

約数和(自身を含む): 1048266240

約数和(自身を除く): 650521360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 73, 80, 104, 124, 130, 146, 155, 169, 208, 248, 260, 292, 310, 338, 365, 403, 496, 520, 584, 620, 676, 730, 806, 845, 949, 1040, 1168, 1240, 1352, 1460, 1612, 1690, 1898, 2015, 2197, 2263, 2480, 2704, 2920, 3224, 3380, 3796, 4030, 4394, 4526, 4745, 5239, 5840, 6448, 6760, 7592, 8060, 8788, 9052, 9490, 10478, 10985, 11315, 12337, 13520, 15184, 16120, 17576, 18104, 18980, 20956, 21970, 22630, 24674, 26195, 29419, 32240, 35152, 36208, 37960, 41912, 43940, 45260, 49348, 52390, 58838, 61685, 68107, 75920, 83824, 87880, 90520, 98696, 104780, 117676, 123370, 136214, 147095, 160381, 175760, 181040, 197392, 209560, 235352, 246740, 272428, 294190, 320762, 340535, 382447, 419120, 470704, 493480, 544856, 588380, 641524, 681070, 764894, 801905, 986960, 1089712, 1176760, 1283048, 1362140, 1529788, 1603810, 1912235, 2353520, 2566096, 2724280, 3059576, 3207620, 3824470, 4971811, 5448560, 6119152, 6415240, 7648940, 9943622, 12830480, 15297880, 19887244, 24859055, 30595760, 39774488, 49718110, 79548976, 99436220, 198872440, 397744880]

約数ペア:

[(1, 397744880), (2, 198872440), (4, 99436220), (5, 79548976), (8, 49718110), (10, 39774488), (13, 30595760), (16, 24859055), (20, 19887244), (26, 15297880), (31, 12830480), (40, 9943622), (52, 7648940), (62, 6415240), (65, 6119152), (73, 5448560), (80, 4971811), (104, 3824470), (124, 3207620), (130, 3059576), (146, 2724280), (155, 2566096), (169, 2353520), (208, 1912235), (248, 1603810), (260, 1529788), (292, 1362140), (310, 1283048), (338, 1176760), (365, 1089712), (403, 986960), (496, 801905), (520, 764894), (584, 681070), (620, 641524), (676, 588380), (730, 544856), (806, 493480), (845, 470704), (949, 419120), (1040, 382447), (1168, 340535), (1240, 320762), (1352, 294190), (1460, 272428), (1612, 246740), (1690, 235352), (1898, 209560), (2015, 197392), (2197, 181040), (2263, 175760), (2480, 160381), (2704, 147095), (2920, 136214), (3224, 123370), (3380, 117676), (3796, 104780), (4030, 98696), (4394, 90520), (4526, 87880), (4745, 83824), (5239, 75920), (5840, 68107), (6448, 61685), (6760, 58838), (7592, 52390), (8060, 49348), (8788, 45260), (9052, 43940), (9490, 41912), (10478, 37960), (10985, 36208), (11315, 35152), (12337, 32240), (13520, 29419), (15184, 26195), (16120, 24674), (17576, 22630), (18104, 21970), (18980, 20956)]