257075140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2753}}^1$

素因数の和:2821

約数の個数: 96

約数和(自身を含む): 666247680

約数和(自身を除く): 409172540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 29, 35, 46, 58, 70, 92, 115, 116, 140, 145, 161, 203, 230, 290, 322, 406, 460, 580, 644, 667, 805, 812, 1015, 1334, 1610, 2030, 2668, 2753, 3220, 3335, 4060, 4669, 5506, 6670, 9338, 11012, 13340, 13765, 18676, 19271, 23345, 27530, 38542, 46690, 55060, 63319, 77084, 79837, 93380, 96355, 126638, 159674, 192710, 253276, 316595, 319348, 385420, 399185, 443233, 558859, 633190, 798370, 886466, 1117718, 1266380, 1596740, 1772932, 1836251, 2216165, 2235436, 2794295, 3672502, 4432330, 5588590, 7345004, 8864660, 9181255, 11177180, 12853757, 18362510, 25707514, 36725020, 51415028, 64268785, 128537570, 257075140]

約数ペア:

[(1, 257075140), (2, 128537570), (4, 64268785), (5, 51415028), (7, 36725020), (10, 25707514), (14, 18362510), (20, 12853757), (23, 11177180), (28, 9181255), (29, 8864660), (35, 7345004), (46, 5588590), (58, 4432330), (70, 3672502), (92, 2794295), (115, 2235436), (116, 2216165), (140, 1836251), (145, 1772932), (161, 1596740), (203, 1266380), (230, 1117718), (290, 886466), (322, 798370), (406, 633190), (460, 558859), (580, 443233), (644, 399185), (667, 385420), (805, 319348), (812, 316595), (1015, 253276), (1334, 192710), (1610, 159674), (2030, 126638), (2668, 96355), (2753, 93380), (3220, 79837), (3335, 77084), (4060, 63319), (4669, 55060), (5506, 46690), (6670, 38542), (9338, 27530), (11012, 23345), (13340, 19271), (13765, 18676)]