347764820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{3319}}^1$

素因数の和:3385

約数の個数: 72

約数和(自身を含む): 816560640

約数和(自身を除く): 468795820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 620, 676, 806, 845, 1612, 1690, 2015, 3319, 3380, 4030, 5239, 6638, 8060, 10478, 13276, 16595, 20956, 26195, 33190, 43147, 52390, 66380, 86294, 102889, 104780, 172588, 205778, 215735, 411556, 431470, 514445, 560911, 862940, 1028890, 1121822, 1337557, 2057780, 2243644, 2675114, 2804555, 5350228, 5609110, 6687785, 11218220, 13375570, 17388241, 26751140, 34776482, 69552964, 86941205, 173882410, 347764820]

約数ペア:

[(1, 347764820), (2, 173882410), (4, 86941205), (5, 69552964), (10, 34776482), (13, 26751140), (20, 17388241), (26, 13375570), (31, 11218220), (52, 6687785), (62, 5609110), (65, 5350228), (124, 2804555), (130, 2675114), (155, 2243644), (169, 2057780), (260, 1337557), (310, 1121822), (338, 1028890), (403, 862940), (620, 560911), (676, 514445), (806, 431470), (845, 411556), (1612, 215735), (1690, 205778), (2015, 172588), (3319, 104780), (3380, 102889), (4030, 86294), (5239, 66380), (6638, 52390), (8060, 43147), (10478, 33190), (13276, 26195), (16595, 20956)]