81539796

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1297}}^1$

素因数の和:1361

約数の個数: 72

約数和(自身を含む): 212830464

約数和(自身を除く): 131290668

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 169, 186, 338, 372, 403, 507, 676, 806, 1014, 1209, 1297, 1612, 2028, 2418, 2594, 3891, 4836, 5188, 5239, 7782, 10478, 15564, 15717, 16861, 20956, 31434, 33722, 40207, 50583, 62868, 67444, 80414, 101166, 120621, 160828, 202332, 219193, 241242, 438386, 482484, 522691, 657579, 876772, 1045382, 1315158, 1568073, 2090764, 2630316, 3136146, 6272292, 6794983, 13589966, 20384949, 27179932, 40769898, 81539796]

約数ペア:

[(1, 81539796), (2, 40769898), (3, 27179932), (4, 20384949), (6, 13589966), (12, 6794983), (13, 6272292), (26, 3136146), (31, 2630316), (39, 2090764), (52, 1568073), (62, 1315158), (78, 1045382), (93, 876772), (124, 657579), (156, 522691), (169, 482484), (186, 438386), (338, 241242), (372, 219193), (403, 202332), (507, 160828), (676, 120621), (806, 101166), (1014, 80414), (1209, 67444), (1297, 62868), (1612, 50583), (2028, 40207), (2418, 33722), (2594, 31434), (3891, 20956), (4836, 16861), (5188, 15717), (5239, 15564), (7782, 10478)]