208774150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{797}}^1$

素因数の和:866

約数の個数: 72

約数和(自身を含む): 434597184

約数和(自身を除く): 225823034

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 169, 310, 325, 338, 403, 650, 775, 797, 806, 845, 1550, 1594, 1690, 2015, 3985, 4030, 4225, 5239, 7970, 8450, 10075, 10361, 10478, 19925, 20150, 20722, 24707, 26195, 39850, 49414, 51805, 52390, 103610, 123535, 130975, 134693, 247070, 259025, 261950, 269386, 321191, 518050, 617675, 642382, 673465, 1235350, 1346930, 1605955, 3211910, 3367325, 4175483, 6734650, 8029775, 8350966, 16059550, 20877415, 41754830, 104387075, 208774150]

約数ペア:

[(1, 208774150), (2, 104387075), (5, 41754830), (10, 20877415), (13, 16059550), (25, 8350966), (26, 8029775), (31, 6734650), (50, 4175483), (62, 3367325), (65, 3211910), (130, 1605955), (155, 1346930), (169, 1235350), (310, 673465), (325, 642382), (338, 617675), (403, 518050), (650, 321191), (775, 269386), (797, 261950), (806, 259025), (845, 247070), (1550, 134693), (1594, 130975), (1690, 123535), (2015, 103610), (3985, 52390), (4030, 51805), (4225, 49414), (5239, 39850), (7970, 26195), (8450, 24707), (10075, 20722), (10361, 20150), (10478, 19925)]