165588640

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{21121}}^1$

素因数の和:21150

約数の個数: 72

約数和(自身を含む): 455094612

約数和(自身を除く): 289505972

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 21121, 42242, 84484, 105605, 147847, 168968, 211210, 295694, 337936, 422420, 591388, 675872, 739235, 844840, 1034929, 1182776, 1478470, 1689680, 2069858, 2365552, 2956940, 3379360, 4139716, 4731104, 5174645, 5913880, 8279432, 10349290, 11827760, 16558864, 20698580, 23655520, 33117728, 41397160, 82794320, 165588640]

約数ペア:

[(1, 165588640), (2, 82794320), (4, 41397160), (5, 33117728), (7, 23655520), (8, 20698580), (10, 16558864), (14, 11827760), (16, 10349290), (20, 8279432), (28, 5913880), (32, 5174645), (35, 4731104), (40, 4139716), (49, 3379360), (56, 2956940), (70, 2365552), (80, 2069858), (98, 1689680), (112, 1478470), (140, 1182776), (160, 1034929), (196, 844840), (224, 739235), (245, 675872), (280, 591388), (392, 422420), (490, 337936), (560, 295694), (784, 211210), (980, 168968), (1120, 147847), (1568, 105605), (1960, 84484), (3920, 42242), (7840, 21121)]