81287580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:220

約数の個数: 192

約数和(自身を含む): 267079680

約数和(自身を除く): 185792100

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 29, 30, 31, 33, 44, 55, 58, 60, 62, 66, 87, 93, 110, 116, 124, 132, 137, 145, 155, 165, 174, 186, 220, 274, 290, 310, 319, 330, 341, 348, 372, 411, 435, 465, 548, 580, 620, 638, 660, 682, 685, 822, 870, 899, 930, 957, 1023, 1276, 1364, 1370, 1507, 1595, 1644, 1705, 1740, 1798, 1860, 1914, 2046, 2055, 2697, 2740, 3014, 3190, 3410, 3596, 3828, 3973, 4092, 4110, 4247, 4495, 4521, 4785, 5115, 5394, 6028, 6380, 6820, 7535, 7946, 8220, 8494, 8990, 9042, 9570, 9889, 10230, 10788, 11919, 12741, 13485, 15070, 15892, 16988, 17980, 18084, 19140, 19778, 19865, 20460, 21235, 22605, 23838, 25482, 26970, 29667, 30140, 39556, 39730, 42470, 43703, 45210, 46717, 47676, 49445, 50964, 53940, 59334, 59595, 63705, 79460, 84940, 87406, 90420, 93434, 98890, 118668, 119190, 123163, 127410, 131109, 140151, 148335, 174812, 186868, 197780, 218515, 233585, 238380, 246326, 254820, 262218, 280302, 296670, 369489, 437030, 467170, 492652, 524436, 560604, 593340, 615815, 655545, 700755, 738978, 874060, 934340, 1231630, 1311090, 1354793, 1401510, 1477956, 1847445, 2463260, 2622180, 2709586, 2803020, 3694890, 4064379, 5419172, 6773965, 7389780, 8128758, 13547930, 16257516, 20321895, 27095860, 40643790, 81287580]

約数ペア:

[(1, 81287580), (2, 40643790), (3, 27095860), (4, 20321895), (5, 16257516), (6, 13547930), (10, 8128758), (11, 7389780), (12, 6773965), (15, 5419172), (20, 4064379), (22, 3694890), (29, 2803020), (30, 2709586), (31, 2622180), (33, 2463260), (44, 1847445), (55, 1477956), (58, 1401510), (60, 1354793), (62, 1311090), (66, 1231630), (87, 934340), (93, 874060), (110, 738978), (116, 700755), (124, 655545), (132, 615815), (137, 593340), (145, 560604), (155, 524436), (165, 492652), (174, 467170), (186, 437030), (220, 369489), (274, 296670), (290, 280302), (310, 262218), (319, 254820), (330, 246326), (341, 238380), (348, 233585), (372, 218515), (411, 197780), (435, 186868), (465, 174812), (548, 148335), (580, 140151), (620, 131109), (638, 127410), (660, 123163), (682, 119190), (685, 118668), (822, 98890), (870, 93434), (899, 90420), (930, 87406), (957, 84940), (1023, 79460), (1276, 63705), (1364, 59595), (1370, 59334), (1507, 53940), (1595, 50964), (1644, 49445), (1705, 47676), (1740, 46717), (1798, 45210), (1860, 43703), (1914, 42470), (2046, 39730), (2055, 39556), (2697, 30140), (2740, 29667), (3014, 26970), (3190, 25482), (3410, 23838), (3596, 22605), (3828, 21235), (3973, 20460), (4092, 19865), (4110, 19778), (4247, 19140), (4495, 18084), (4521, 17980), (4785, 16988), (5115, 15892), (5394, 15070), (6028, 13485), (6380, 12741), (6820, 11919), (7535, 10788), (7946, 10230), (8220, 9889), (8494, 9570), (8990, 9042)]