1991613060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{15739}}^1$

素因数の和:15810

約数の個数: 144

約数和(自身を含む): 6531470400

約数和(自身を除く): 4539857340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 37, 38, 45, 57, 60, 74, 76, 90, 95, 111, 114, 148, 171, 180, 185, 190, 222, 228, 285, 333, 342, 370, 380, 444, 555, 570, 666, 684, 703, 740, 855, 1110, 1140, 1332, 1406, 1665, 1710, 2109, 2220, 2812, 3330, 3420, 3515, 4218, 6327, 6660, 7030, 8436, 10545, 12654, 14060, 15739, 21090, 25308, 31478, 31635, 42180, 47217, 62956, 63270, 78695, 94434, 126540, 141651, 157390, 188868, 236085, 283302, 299041, 314780, 472170, 566604, 582343, 598082, 708255, 897123, 944340, 1164686, 1196164, 1416510, 1495205, 1747029, 1794246, 2329372, 2691369, 2833020, 2911715, 2990410, 3494058, 3588492, 4485615, 5241087, 5382738, 5823430, 5980820, 6988116, 8735145, 8971230, 10482174, 10765476, 11064517, 11646860, 13456845, 17470290, 17942460, 20964348, 22129034, 26205435, 26913690, 33193551, 34940580, 44258068, 52410870, 53827380, 55322585, 66387102, 99580653, 104821740, 110645170, 132774204, 165967755, 199161306, 221290340, 331935510, 398322612, 497903265, 663871020, 995806530, 1991613060]

約数ペア:

[(1, 1991613060), (2, 995806530), (3, 663871020), (4, 497903265), (5, 398322612), (6, 331935510), (9, 221290340), (10, 199161306), (12, 165967755), (15, 132774204), (18, 110645170), (19, 104821740), (20, 99580653), (30, 66387102), (36, 55322585), (37, 53827380), (38, 52410870), (45, 44258068), (57, 34940580), (60, 33193551), (74, 26913690), (76, 26205435), (90, 22129034), (95, 20964348), (111, 17942460), (114, 17470290), (148, 13456845), (171, 11646860), (180, 11064517), (185, 10765476), (190, 10482174), (222, 8971230), (228, 8735145), (285, 6988116), (333, 5980820), (342, 5823430), (370, 5382738), (380, 5241087), (444, 4485615), (555, 3588492), (570, 3494058), (666, 2990410), (684, 2911715), (703, 2833020), (740, 2691369), (855, 2329372), (1110, 1794246), (1140, 1747029), (1332, 1495205), (1406, 1416510), (1665, 1196164), (1710, 1164686), (2109, 944340), (2220, 897123), (2812, 708255), (3330, 598082), (3420, 582343), (3515, 566604), (4218, 472170), (6327, 314780), (6660, 299041), (7030, 283302), (8436, 236085), (10545, 188868), (12654, 157390), (14060, 141651), (15739, 126540), (21090, 94434), (25308, 78695), (31478, 63270), (31635, 62956), (42180, 47217)]