31224440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 79056000

約数和(自身を除く): 47831560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 149, 155, 169, 248, 260, 298, 310, 338, 403, 520, 596, 620, 676, 745, 806, 845, 1192, 1240, 1352, 1490, 1612, 1690, 1937, 2015, 2980, 3224, 3380, 3874, 4030, 4619, 5239, 5960, 6760, 7748, 8060, 9238, 9685, 10478, 15496, 16120, 18476, 19370, 20956, 23095, 25181, 26195, 36952, 38740, 41912, 46190, 50362, 52390, 60047, 77480, 92380, 100724, 104780, 120094, 125905, 184760, 201448, 209560, 240188, 251810, 300235, 480376, 503620, 600470, 780611, 1007240, 1200940, 1561222, 2401880, 3122444, 3903055, 6244888, 7806110, 15612220, 31224440]

約数ペア:

[(1, 31224440), (2, 15612220), (4, 7806110), (5, 6244888), (8, 3903055), (10, 3122444), (13, 2401880), (20, 1561222), (26, 1200940), (31, 1007240), (40, 780611), (52, 600470), (62, 503620), (65, 480376), (104, 300235), (124, 251810), (130, 240188), (149, 209560), (155, 201448), (169, 184760), (248, 125905), (260, 120094), (298, 104780), (310, 100724), (338, 92380), (403, 77480), (520, 60047), (596, 52390), (620, 50362), (676, 46190), (745, 41912), (806, 38740), (845, 36952), (1192, 26195), (1240, 25181), (1352, 23095), (1490, 20956), (1612, 19370), (1690, 18476), (1937, 16120), (2015, 15496), (2980, 10478), (3224, 9685), (3380, 9238), (3874, 8060), (4030, 7748), (4619, 6760), (5239, 5960)]