81555144

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:339

約数の個数: 128

約数和(自身を含む): 238464000

約数和(自身を除く): 156908856

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 19, 22, 24, 33, 38, 44, 57, 66, 71, 76, 88, 114, 132, 142, 152, 209, 213, 228, 229, 264, 284, 418, 426, 456, 458, 568, 627, 687, 781, 836, 852, 916, 1254, 1349, 1374, 1562, 1672, 1704, 1832, 2343, 2508, 2519, 2698, 2748, 3124, 4047, 4351, 4686, 5016, 5038, 5396, 5496, 6248, 7557, 8094, 8702, 9372, 10076, 10792, 13053, 14839, 15114, 16188, 16259, 17404, 18744, 20152, 26106, 29678, 30228, 32376, 32518, 34808, 44517, 47861, 48777, 52212, 59356, 60456, 65036, 89034, 95722, 97554, 104424, 118712, 130072, 143583, 178068, 178849, 191444, 195108, 287166, 308921, 356136, 357698, 382888, 390216, 536547, 574332, 617842, 715396, 926763, 1073094, 1148664, 1235684, 1430792, 1853526, 2146188, 2471368, 3398131, 3707052, 4292376, 6796262, 7414104, 10194393, 13592524, 20388786, 27185048, 40777572, 81555144]

約数ペア:

[(1, 81555144), (2, 40777572), (3, 27185048), (4, 20388786), (6, 13592524), (8, 10194393), (11, 7414104), (12, 6796262), (19, 4292376), (22, 3707052), (24, 3398131), (33, 2471368), (38, 2146188), (44, 1853526), (57, 1430792), (66, 1235684), (71, 1148664), (76, 1073094), (88, 926763), (114, 715396), (132, 617842), (142, 574332), (152, 536547), (209, 390216), (213, 382888), (228, 357698), (229, 356136), (264, 308921), (284, 287166), (418, 195108), (426, 191444), (456, 178849), (458, 178068), (568, 143583), (627, 130072), (687, 118712), (781, 104424), (836, 97554), (852, 95722), (916, 89034), (1254, 65036), (1349, 60456), (1374, 59356), (1562, 52212), (1672, 48777), (1704, 47861), (1832, 44517), (2343, 34808), (2508, 32518), (2519, 32376), (2698, 30228), (2748, 29678), (3124, 26106), (4047, 20152), (4351, 18744), (4686, 17404), (5016, 16259), (5038, 16188), (5396, 15114), (5496, 14839), (6248, 13053), (7557, 10792), (8094, 10076), (8702, 9372)]