81516360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1289}}^1$

素因数の和:1351

約数の個数: 128

約数和(自身を含む): 267494400

約数和(自身を除く): 185978040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 31, 34, 40, 51, 60, 62, 68, 85, 93, 102, 120, 124, 136, 155, 170, 186, 204, 248, 255, 310, 340, 372, 408, 465, 510, 527, 620, 680, 744, 930, 1020, 1054, 1240, 1289, 1581, 1860, 2040, 2108, 2578, 2635, 3162, 3720, 3867, 4216, 5156, 5270, 6324, 6445, 7734, 7905, 10312, 10540, 12648, 12890, 15468, 15810, 19335, 21080, 21913, 25780, 30936, 31620, 38670, 39959, 43826, 51560, 63240, 65739, 77340, 79918, 87652, 109565, 119877, 131478, 154680, 159836, 175304, 199795, 219130, 239754, 262956, 319672, 328695, 399590, 438260, 479508, 525912, 599385, 657390, 679303, 799180, 876520, 959016, 1198770, 1314780, 1358606, 1598360, 2037909, 2397540, 2629560, 2717212, 3396515, 4075818, 4795080, 5434424, 6793030, 8151636, 10189545, 13586060, 16303272, 20379090, 27172120, 40758180, 81516360]

約数ペア:

[(1, 81516360), (2, 40758180), (3, 27172120), (4, 20379090), (5, 16303272), (6, 13586060), (8, 10189545), (10, 8151636), (12, 6793030), (15, 5434424), (17, 4795080), (20, 4075818), (24, 3396515), (30, 2717212), (31, 2629560), (34, 2397540), (40, 2037909), (51, 1598360), (60, 1358606), (62, 1314780), (68, 1198770), (85, 959016), (93, 876520), (102, 799180), (120, 679303), (124, 657390), (136, 599385), (155, 525912), (170, 479508), (186, 438260), (204, 399590), (248, 328695), (255, 319672), (310, 262956), (340, 239754), (372, 219130), (408, 199795), (465, 175304), (510, 159836), (527, 154680), (620, 131478), (680, 119877), (744, 109565), (930, 87652), (1020, 79918), (1054, 77340), (1240, 65739), (1289, 63240), (1581, 51560), (1860, 43826), (2040, 39959), (2108, 38670), (2578, 31620), (2635, 30936), (3162, 25780), (3720, 21913), (3867, 21080), (4216, 19335), (5156, 15810), (5270, 15468), (6324, 12890), (6445, 12648), (7734, 10540), (7905, 10312)]