681090340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{256049}}^1$

素因数の和:256084

約数の個数: 48

約数和(自身を含む): 1720656000

約数和(自身を除く): 1039565660

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 256049, 512098, 1024196, 1280245, 1792343, 2560490, 3584686, 4864931, 5120980, 7169372, 8961715, 9729862, 17923430, 19459724, 24324655, 34054517, 35846860, 48649310, 68109034, 97298620, 136218068, 170272585, 340545170, 681090340]

約数ペア:

[(1, 681090340), (2, 340545170), (4, 170272585), (5, 136218068), (7, 97298620), (10, 68109034), (14, 48649310), (19, 35846860), (20, 34054517), (28, 24324655), (35, 19459724), (38, 17923430), (70, 9729862), (76, 8961715), (95, 7169372), (133, 5120980), (140, 4864931), (190, 3584686), (266, 2560490), (380, 1792343), (532, 1280245), (665, 1024196), (1330, 512098), (2660, 256049)]