19611480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{631}}^1$

素因数の和:689

約数の個数: 128

約数和(自身を含む): 69166080

約数和(自身を除く): 49554600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 56, 60, 70, 74, 84, 105, 111, 120, 140, 148, 168, 185, 210, 222, 259, 280, 296, 370, 420, 444, 518, 555, 631, 740, 777, 840, 888, 1036, 1110, 1262, 1295, 1480, 1554, 1893, 2072, 2220, 2524, 2590, 3108, 3155, 3786, 3885, 4417, 4440, 5048, 5180, 6216, 6310, 7572, 7770, 8834, 9465, 10360, 12620, 13251, 15144, 15540, 17668, 18930, 22085, 23347, 25240, 26502, 31080, 35336, 37860, 44170, 46694, 53004, 66255, 70041, 75720, 88340, 93388, 106008, 116735, 132510, 140082, 163429, 176680, 186776, 233470, 265020, 280164, 326858, 350205, 466940, 490287, 530040, 560328, 653716, 700410, 817145, 933880, 980574, 1307432, 1400820, 1634290, 1961148, 2451435, 2801640, 3268580, 3922296, 4902870, 6537160, 9805740, 19611480]

約数ペア:

[(1, 19611480), (2, 9805740), (3, 6537160), (4, 4902870), (5, 3922296), (6, 3268580), (7, 2801640), (8, 2451435), (10, 1961148), (12, 1634290), (14, 1400820), (15, 1307432), (20, 980574), (21, 933880), (24, 817145), (28, 700410), (30, 653716), (35, 560328), (37, 530040), (40, 490287), (42, 466940), (56, 350205), (60, 326858), (70, 280164), (74, 265020), (84, 233470), (105, 186776), (111, 176680), (120, 163429), (140, 140082), (148, 132510), (168, 116735), (185, 106008), (210, 93388), (222, 88340), (259, 75720), (280, 70041), (296, 66255), (370, 53004), (420, 46694), (444, 44170), (518, 37860), (555, 35336), (631, 31080), (740, 26502), (777, 25240), (840, 23347), (888, 22085), (1036, 18930), (1110, 17668), (1262, 15540), (1295, 15144), (1480, 13251), (1554, 12620), (1893, 10360), (2072, 9465), (2220, 8834), (2524, 7770), (2590, 7572), (3108, 6310), (3155, 6216), (3786, 5180), (3885, 5048), (4417, 4440)]