1640642685

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{1249}}^1$

素因数の和:1706

約数の個数: 64

約数和(自身を含む): 3024000000

約数和(自身を除く): 1383357315

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 419, 627, 1045, 1249, 1257, 2095, 3135, 3747, 4609, 6245, 6285, 7961, 13739, 13827, 18735, 23045, 23731, 23883, 39805, 41217, 68695, 69135, 71193, 87571, 118655, 119415, 206085, 261041, 262713, 355965, 437855, 523331, 783123, 1305205, 1313565, 1569993, 2616655, 3915615, 5756641, 7849965, 9943289, 17269923, 28783205, 29829867, 49716445, 86349615, 109376179, 149149335, 328128537, 546880895, 1640642685]

約数ペア:

[(1, 1640642685), (3, 546880895), (5, 328128537), (11, 149149335), (15, 109376179), (19, 86349615), (33, 49716445), (55, 29829867), (57, 28783205), (95, 17269923), (165, 9943289), (209, 7849965), (285, 5756641), (419, 3915615), (627, 2616655), (1045, 1569993), (1249, 1313565), (1257, 1305205), (2095, 783123), (3135, 523331), (3747, 437855), (4609, 355965), (6245, 262713), (6285, 261041), (7961, 206085), (13739, 119415), (13827, 118655), (18735, 87571), (23045, 71193), (23731, 69135), (23883, 68695), (39805, 41217)]