81115668

素因数分解:

$2^2\times 3^4\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:231

約数の個数: 120

約数和(自身を含む): 224116200

約数和(自身を除く): 143000532

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 29, 36, 54, 58, 81, 87, 89, 97, 108, 116, 162, 174, 178, 194, 261, 267, 291, 324, 348, 356, 388, 522, 534, 582, 783, 801, 873, 1044, 1068, 1164, 1566, 1602, 1746, 2349, 2403, 2581, 2619, 2813, 3132, 3204, 3492, 4698, 4806, 5162, 5238, 5626, 7209, 7743, 7857, 8439, 8633, 9396, 9612, 10324, 10476, 11252, 14418, 15486, 15714, 16878, 17266, 23229, 25317, 25899, 28836, 30972, 31428, 33756, 34532, 46458, 50634, 51798, 69687, 75951, 77697, 92916, 101268, 103596, 139374, 151902, 155394, 209061, 227853, 233091, 250357, 278748, 303804, 310788, 418122, 455706, 466182, 500714, 699273, 751071, 836244, 911412, 932364, 1001428, 1398546, 1502142, 2253213, 2797092, 3004284, 4506426, 6759639, 9012852, 13519278, 20278917, 27038556, 40557834, 81115668]

約数ペア:

[(1, 81115668), (2, 40557834), (3, 27038556), (4, 20278917), (6, 13519278), (9, 9012852), (12, 6759639), (18, 4506426), (27, 3004284), (29, 2797092), (36, 2253213), (54, 1502142), (58, 1398546), (81, 1001428), (87, 932364), (89, 911412), (97, 836244), (108, 751071), (116, 699273), (162, 500714), (174, 466182), (178, 455706), (194, 418122), (261, 310788), (267, 303804), (291, 278748), (324, 250357), (348, 233091), (356, 227853), (388, 209061), (522, 155394), (534, 151902), (582, 139374), (783, 103596), (801, 101268), (873, 92916), (1044, 77697), (1068, 75951), (1164, 69687), (1566, 51798), (1602, 50634), (1746, 46458), (2349, 34532), (2403, 33756), (2581, 31428), (2619, 30972), (2813, 28836), (3132, 25899), (3204, 25317), (3492, 23229), (4698, 17266), (4806, 16878), (5162, 15714), (5238, 15486), (5626, 14418), (7209, 11252), (7743, 10476), (7857, 10324), (8439, 9612), (8633, 9396)]