20406987120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{40127}}^1$

素因数の和:40319

約数の個数: 160

約数和(自身を含む): 68547612672

約数和(自身を除く): 48140625552

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 163, 195, 208, 240, 260, 312, 326, 390, 489, 520, 624, 652, 780, 815, 978, 1040, 1304, 1560, 1630, 1956, 2119, 2445, 2608, 3120, 3260, 3912, 4238, 4890, 6357, 6520, 7824, 8476, 9780, 10595, 12714, 13040, 16952, 19560, 21190, 25428, 31785, 33904, 39120, 40127, 42380, 50856, 63570, 80254, 84760, 101712, 120381, 127140, 160508, 169520, 200635, 240762, 254280, 321016, 401270, 481524, 508560, 521651, 601905, 642032, 802540, 963048, 1043302, 1203810, 1564953, 1605080, 1926096, 2086604, 2407620, 2608255, 3129906, 3210160, 4173208, 4815240, 5216510, 6259812, 6540701, 7824765, 8346416, 9630480, 10433020, 12519624, 13081402, 15649530, 19622103, 20866040, 25039248, 26162804, 31299060, 32703505, 39244206, 41732080, 52325608, 62598120, 65407010, 78488412, 85029113, 98110515, 104651216, 125196240, 130814020, 156976824, 170058226, 196221030, 255087339, 261628040, 313953648, 340116452, 392442060, 425145565, 510174678, 523256080, 680232904, 784884120, 850291130, 1020349356, 1275436695, 1360465808, 1569768240, 1700582260, 2040698712, 2550873390, 3401164520, 4081397424, 5101746780, 6802329040, 10203493560, 20406987120]

約数ペア:

[(1, 20406987120), (2, 10203493560), (3, 6802329040), (4, 5101746780), (5, 4081397424), (6, 3401164520), (8, 2550873390), (10, 2040698712), (12, 1700582260), (13, 1569768240), (15, 1360465808), (16, 1275436695), (20, 1020349356), (24, 850291130), (26, 784884120), (30, 680232904), (39, 523256080), (40, 510174678), (48, 425145565), (52, 392442060), (60, 340116452), (65, 313953648), (78, 261628040), (80, 255087339), (104, 196221030), (120, 170058226), (130, 156976824), (156, 130814020), (163, 125196240), (195, 104651216), (208, 98110515), (240, 85029113), (260, 78488412), (312, 65407010), (326, 62598120), (390, 52325608), (489, 41732080), (520, 39244206), (624, 32703505), (652, 31299060), (780, 26162804), (815, 25039248), (978, 20866040), (1040, 19622103), (1304, 15649530), (1560, 13081402), (1630, 12519624), (1956, 10433020), (2119, 9630480), (2445, 8346416), (2608, 7824765), (3120, 6540701), (3260, 6259812), (3912, 5216510), (4238, 4815240), (4890, 4173208), (6357, 3210160), (6520, 3129906), (7824, 2608255), (8476, 2407620), (9780, 2086604), (10595, 1926096), (12714, 1605080), (13040, 1564953), (16952, 1203810), (19560, 1043302), (21190, 963048), (25428, 802540), (31785, 642032), (33904, 601905), (39120, 521651), (40127, 508560), (42380, 481524), (50856, 401270), (63570, 321016), (80254, 254280), (84760, 240762), (101712, 200635), (120381, 169520), (127140, 160508)]