642140520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{3623}}^1$

素因数の和:3855

約数の個数: 128

約数和(自身を含む): 2212669440

約数和(自身を除く): 1570528920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 211, 280, 420, 422, 633, 840, 844, 1055, 1266, 1477, 1688, 2110, 2532, 2954, 3165, 3623, 4220, 4431, 5064, 5908, 6330, 7246, 7385, 8440, 8862, 10869, 11816, 12660, 14492, 14770, 17724, 18115, 21738, 22155, 25320, 25361, 28984, 29540, 35448, 36230, 43476, 44310, 50722, 54345, 59080, 72460, 76083, 86952, 88620, 101444, 108690, 126805, 144920, 152166, 177240, 202888, 217380, 253610, 304332, 380415, 434760, 507220, 608664, 760830, 764453, 1014440, 1521660, 1528906, 2293359, 3043320, 3057812, 3822265, 4586718, 5351171, 6115624, 7644530, 9173436, 10702342, 11466795, 15289060, 16053513, 18346872, 21404684, 22933590, 26755855, 30578120, 32107026, 42809368, 45867180, 53511710, 64214052, 80267565, 91734360, 107023420, 128428104, 160535130, 214046840, 321070260, 642140520]

約数ペア:

[(1, 642140520), (2, 321070260), (3, 214046840), (4, 160535130), (5, 128428104), (6, 107023420), (7, 91734360), (8, 80267565), (10, 64214052), (12, 53511710), (14, 45867180), (15, 42809368), (20, 32107026), (21, 30578120), (24, 26755855), (28, 22933590), (30, 21404684), (35, 18346872), (40, 16053513), (42, 15289060), (56, 11466795), (60, 10702342), (70, 9173436), (84, 7644530), (105, 6115624), (120, 5351171), (140, 4586718), (168, 3822265), (210, 3057812), (211, 3043320), (280, 2293359), (420, 1528906), (422, 1521660), (633, 1014440), (840, 764453), (844, 760830), (1055, 608664), (1266, 507220), (1477, 434760), (1688, 380415), (2110, 304332), (2532, 253610), (2954, 217380), (3165, 202888), (3623, 177240), (4220, 152166), (4431, 144920), (5064, 126805), (5908, 108690), (6330, 101444), (7246, 88620), (7385, 86952), (8440, 76083), (8862, 72460), (10869, 59080), (11816, 54345), (12660, 50722), (14492, 44310), (14770, 43476), (17724, 36230), (18115, 35448), (21738, 29540), (22155, 28984), (25320, 25361)]