289689010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6899}}^1$

素因数の和:6955

約数の個数: 64

約数和(自身を含む): 625968000

約数和(自身を除く): 336278990

約数列:

[1, 2, 5, 10, 13, 17, 19, 26, 34, 38, 65, 85, 95, 130, 170, 190, 221, 247, 323, 442, 494, 646, 1105, 1235, 1615, 2210, 2470, 3230, 4199, 6899, 8398, 13798, 20995, 34495, 41990, 68990, 89687, 117283, 131081, 179374, 234566, 262162, 448435, 586415, 655405, 896870, 1172830, 1310810, 1524679, 1704053, 2228377, 3049358, 3408106, 4456754, 7623395, 8520265, 11141885, 15246790, 17040530, 22283770, 28968901, 57937802, 144844505, 289689010]

約数ペア:

[(1, 289689010), (2, 144844505), (5, 57937802), (10, 28968901), (13, 22283770), (17, 17040530), (19, 15246790), (26, 11141885), (34, 8520265), (38, 7623395), (65, 4456754), (85, 3408106), (95, 3049358), (130, 2228377), (170, 1704053), (190, 1524679), (221, 1310810), (247, 1172830), (323, 896870), (442, 655405), (494, 586415), (646, 448435), (1105, 262162), (1235, 234566), (1615, 179374), (2210, 131081), (2470, 117283), (3230, 89687), (4199, 68990), (6899, 41990), (8398, 34495), (13798, 20995)]