2000640

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{521}}^1$

素因数の和:545

約数の個数: 72

約数和(自身を含む): 6401808

約数和(自身を除く): 4401168

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 521, 640, 768, 960, 1042, 1280, 1563, 1920, 2084, 2605, 3126, 3840, 4168, 5210, 6252, 7815, 8336, 10420, 12504, 15630, 16672, 20840, 25008, 31260, 33344, 41680, 50016, 62520, 66688, 83360, 100032, 125040, 133376, 166720, 200064, 250080, 333440, 400128, 500160, 666880, 1000320, 2000640]

約数ペア:

[(1, 2000640), (2, 1000320), (3, 666880), (4, 500160), (5, 400128), (6, 333440), (8, 250080), (10, 200064), (12, 166720), (15, 133376), (16, 125040), (20, 100032), (24, 83360), (30, 66688), (32, 62520), (40, 50016), (48, 41680), (60, 33344), (64, 31260), (80, 25008), (96, 20840), (120, 16672), (128, 15630), (160, 12504), (192, 10420), (240, 8336), (256, 7815), (320, 6252), (384, 5210), (480, 4168), (521, 3840), (640, 3126), (768, 2605), (960, 2084), (1042, 1920), (1280, 1563)]