81244680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1009}}^1$

素因数の和:1095

約数の個数: 128

約数和(自身を含む): 270518400

約数和(自身を除く): 189273720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 61, 66, 88, 110, 120, 122, 132, 165, 183, 220, 244, 264, 305, 330, 366, 440, 488, 610, 660, 671, 732, 915, 1009, 1220, 1320, 1342, 1464, 1830, 2013, 2018, 2440, 2684, 3027, 3355, 3660, 4026, 4036, 5045, 5368, 6054, 6710, 7320, 8052, 8072, 10065, 10090, 11099, 12108, 13420, 15135, 16104, 20130, 20180, 22198, 24216, 26840, 30270, 33297, 40260, 40360, 44396, 55495, 60540, 61549, 66594, 80520, 88792, 110990, 121080, 123098, 133188, 166485, 184647, 221980, 246196, 266376, 307745, 332970, 369294, 443960, 492392, 615490, 665940, 677039, 738588, 923235, 1230980, 1331880, 1354078, 1477176, 1846470, 2031117, 2461960, 2708156, 3385195, 3692940, 4062234, 5416312, 6770390, 7385880, 8124468, 10155585, 13540780, 16248936, 20311170, 27081560, 40622340, 81244680]

約数ペア:

[(1, 81244680), (2, 40622340), (3, 27081560), (4, 20311170), (5, 16248936), (6, 13540780), (8, 10155585), (10, 8124468), (11, 7385880), (12, 6770390), (15, 5416312), (20, 4062234), (22, 3692940), (24, 3385195), (30, 2708156), (33, 2461960), (40, 2031117), (44, 1846470), (55, 1477176), (60, 1354078), (61, 1331880), (66, 1230980), (88, 923235), (110, 738588), (120, 677039), (122, 665940), (132, 615490), (165, 492392), (183, 443960), (220, 369294), (244, 332970), (264, 307745), (305, 266376), (330, 246196), (366, 221980), (440, 184647), (488, 166485), (610, 133188), (660, 123098), (671, 121080), (732, 110990), (915, 88792), (1009, 80520), (1220, 66594), (1320, 61549), (1342, 60540), (1464, 55495), (1830, 44396), (2013, 40360), (2018, 40260), (2440, 33297), (2684, 30270), (3027, 26840), (3355, 24216), (3660, 22198), (4026, 20180), (4036, 20130), (5045, 16104), (5368, 15135), (6054, 13420), (6710, 12108), (7320, 11099), (8052, 10090), (8072, 10065)]