15612220

素因数分解:

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

素因数の和:215

約数の個数: 72

約数和(自身を含む): 36892800

約数和(自身を除く): 21280580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 149, 155, 169, 260, 298, 310, 338, 403, 596, 620, 676, 745, 806, 845, 1490, 1612, 1690, 1937, 2015, 2980, 3380, 3874, 4030, 4619, 5239, 7748, 8060, 9238, 9685, 10478, 18476, 19370, 20956, 23095, 25181, 26195, 38740, 46190, 50362, 52390, 60047, 92380, 100724, 104780, 120094, 125905, 240188, 251810, 300235, 503620, 600470, 780611, 1200940, 1561222, 3122444, 3903055, 7806110, 15612220]

約数ペア:

[(1, 15612220), (2, 7806110), (4, 3903055), (5, 3122444), (10, 1561222), (13, 1200940), (20, 780611), (26, 600470), (31, 503620), (52, 300235), (62, 251810), (65, 240188), (124, 125905), (130, 120094), (149, 104780), (155, 100724), (169, 92380), (260, 60047), (298, 52390), (310, 50362), (338, 46190), (403, 38740), (596, 26195), (620, 25181), (676, 23095), (745, 20956), (806, 19370), (845, 18476), (1490, 10478), (1612, 9685), (1690, 9238), (1937, 8060), (2015, 7748), (2980, 5239), (3380, 4619), (3874, 4030)]