81884790

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{569}}^1$

素因数の和:639

約数の個数: 128

約数和(自身を含む): 241315200

約数和(自身を除く): 159430410

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 41, 45, 54, 65, 78, 82, 90, 117, 123, 130, 135, 195, 205, 234, 246, 270, 351, 369, 390, 410, 533, 569, 585, 615, 702, 738, 1066, 1107, 1138, 1170, 1230, 1599, 1707, 1755, 1845, 2214, 2665, 2845, 3198, 3414, 3510, 3690, 4797, 5121, 5330, 5535, 5690, 7397, 7995, 8535, 9594, 10242, 11070, 14391, 14794, 15363, 15990, 17070, 22191, 23329, 23985, 25605, 28782, 30726, 36985, 44382, 46658, 47970, 51210, 66573, 69987, 71955, 73970, 76815, 110955, 116645, 133146, 139974, 143910, 153630, 199719, 209961, 221910, 233290, 303277, 332865, 349935, 399438, 419922, 606554, 629883, 665730, 699870, 909831, 998595, 1049805, 1259766, 1516385, 1819662, 1997190, 2099610, 2729493, 3032770, 3149415, 4549155, 5458986, 6298830, 8188479, 9098310, 13647465, 16376958, 27294930, 40942395, 81884790]

約数ペア:

[(1, 81884790), (2, 40942395), (3, 27294930), (5, 16376958), (6, 13647465), (9, 9098310), (10, 8188479), (13, 6298830), (15, 5458986), (18, 4549155), (26, 3149415), (27, 3032770), (30, 2729493), (39, 2099610), (41, 1997190), (45, 1819662), (54, 1516385), (65, 1259766), (78, 1049805), (82, 998595), (90, 909831), (117, 699870), (123, 665730), (130, 629883), (135, 606554), (195, 419922), (205, 399438), (234, 349935), (246, 332865), (270, 303277), (351, 233290), (369, 221910), (390, 209961), (410, 199719), (533, 153630), (569, 143910), (585, 139974), (615, 133146), (702, 116645), (738, 110955), (1066, 76815), (1107, 73970), (1138, 71955), (1170, 69987), (1230, 66573), (1599, 51210), (1707, 47970), (1755, 46658), (1845, 44382), (2214, 36985), (2665, 30726), (2845, 28782), (3198, 25605), (3414, 23985), (3510, 23329), (3690, 22191), (4797, 17070), (5121, 15990), (5330, 15363), (5535, 14794), (5690, 14391), (7397, 11070), (7995, 10242), (8535, 9594)]