81359235

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 156525600

約数和(自身を除く): 75166365

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 97, 109, 135, 171, 285, 291, 327, 405, 485, 513, 545, 855, 873, 981, 1455, 1539, 1635, 1843, 2071, 2565, 2619, 2943, 4365, 4905, 5529, 6213, 7695, 7857, 8829, 9215, 10355, 10573, 13095, 14715, 16587, 18639, 27645, 31065, 31719, 39285, 44145, 49761, 52865, 55917, 82935, 93195, 95157, 149283, 158595, 167751, 200887, 248805, 279585, 285471, 475785, 602661, 746415, 838755, 856413, 1004435, 1427355, 1807983, 3013305, 4282065, 5423949, 9039915, 16271847, 27119745, 81359235]

約数ペア:

[(1, 81359235), (3, 27119745), (5, 16271847), (9, 9039915), (15, 5423949), (19, 4282065), (27, 3013305), (45, 1807983), (57, 1427355), (81, 1004435), (95, 856413), (97, 838755), (109, 746415), (135, 602661), (171, 475785), (285, 285471), (291, 279585), (327, 248805), (405, 200887), (485, 167751), (513, 158595), (545, 149283), (855, 95157), (873, 93195), (981, 82935), (1455, 55917), (1539, 52865), (1635, 49761), (1843, 44145), (2071, 39285), (2565, 31719), (2619, 31065), (2943, 27645), (4365, 18639), (4905, 16587), (5529, 14715), (6213, 13095), (7695, 10573), (7857, 10355), (8829, 9215)]