20175463750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{4831}}^1$

素因数の和:5123

約数の個数: 80

約数和(自身を含む): 40892810112

約数和(自身を除く): 20717346362

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 257, 325, 514, 625, 650, 1250, 1285, 1625, 2570, 3250, 3341, 4831, 6425, 6682, 8125, 9662, 12850, 16250, 16705, 24155, 32125, 33410, 48310, 62803, 64250, 83525, 120775, 125606, 160625, 167050, 241550, 314015, 321250, 417625, 603875, 628030, 835250, 1207750, 1241567, 1570075, 2088125, 2483134, 3019375, 3140150, 4176250, 6038750, 6207835, 7850375, 12415670, 15700750, 16140371, 31039175, 32280742, 39251875, 62078350, 78503750, 80701855, 155195875, 161403710, 310391750, 403509275, 775979375, 807018550, 1551958750, 2017546375, 4035092750, 10087731875, 20175463750]

約数ペア:

[(1, 20175463750), (2, 10087731875), (5, 4035092750), (10, 2017546375), (13, 1551958750), (25, 807018550), (26, 775979375), (50, 403509275), (65, 310391750), (125, 161403710), (130, 155195875), (250, 80701855), (257, 78503750), (325, 62078350), (514, 39251875), (625, 32280742), (650, 31039175), (1250, 16140371), (1285, 15700750), (1625, 12415670), (2570, 7850375), (3250, 6207835), (3341, 6038750), (4831, 4176250), (6425, 3140150), (6682, 3019375), (8125, 2483134), (9662, 2088125), (12850, 1570075), (16250, 1241567), (16705, 1207750), (24155, 835250), (32125, 628030), (33410, 603875), (48310, 417625), (62803, 321250), (64250, 314015), (83525, 241550), (120775, 167050), (125606, 160625)]