19960290

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:261

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 42247710

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 59, 63, 70, 90, 105, 118, 126, 135, 177, 179, 189, 210, 270, 295, 315, 354, 358, 378, 413, 531, 537, 590, 630, 826, 885, 895, 945, 1062, 1074, 1239, 1253, 1593, 1611, 1770, 1790, 1890, 2065, 2478, 2506, 2655, 2685, 3186, 3222, 3717, 3759, 4130, 4833, 5310, 5370, 6195, 6265, 7434, 7518, 7965, 8055, 9666, 10561, 11151, 11277, 12390, 12530, 15930, 16110, 18585, 18795, 21122, 22302, 22554, 24165, 31683, 33831, 37170, 37590, 48330, 52805, 55755, 56385, 63366, 67662, 73927, 95049, 105610, 111510, 112770, 147854, 158415, 169155, 190098, 221781, 285147, 316830, 338310, 369635, 443562, 475245, 570294, 665343, 739270, 950490, 1108905, 1330686, 1425735, 1996029, 2217810, 2851470, 3326715, 3992058, 6653430, 9980145, 19960290]

約数ペア:

[(1, 19960290), (2, 9980145), (3, 6653430), (5, 3992058), (6, 3326715), (7, 2851470), (9, 2217810), (10, 1996029), (14, 1425735), (15, 1330686), (18, 1108905), (21, 950490), (27, 739270), (30, 665343), (35, 570294), (42, 475245), (45, 443562), (54, 369635), (59, 338310), (63, 316830), (70, 285147), (90, 221781), (105, 190098), (118, 169155), (126, 158415), (135, 147854), (177, 112770), (179, 111510), (189, 105610), (210, 95049), (270, 73927), (295, 67662), (315, 63366), (354, 56385), (358, 55755), (378, 52805), (413, 48330), (531, 37590), (537, 37170), (590, 33831), (630, 31683), (826, 24165), (885, 22554), (895, 22302), (945, 21122), (1062, 18795), (1074, 18585), (1239, 16110), (1253, 15930), (1593, 12530), (1611, 12390), (1770, 11277), (1790, 11151), (1890, 10561), (2065, 9666), (2478, 8055), (2506, 7965), (2655, 7518), (2685, 7434), (3186, 6265), (3222, 6195), (3717, 5370), (3759, 5310), (4130, 4833)]