40986280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 96714000

約数和(自身を除く): 55727720

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 89, 116, 145, 178, 232, 290, 356, 397, 445, 580, 712, 794, 890, 1160, 1588, 1780, 1985, 2581, 3176, 3560, 3970, 5162, 7940, 10324, 11513, 12905, 15880, 20648, 23026, 25810, 35333, 46052, 51620, 57565, 70666, 92104, 103240, 115130, 141332, 176665, 230260, 282664, 353330, 460520, 706660, 1024657, 1413320, 2049314, 4098628, 5123285, 8197256, 10246570, 20493140, 40986280]

約数ペア:

[(1, 40986280), (2, 20493140), (4, 10246570), (5, 8197256), (8, 5123285), (10, 4098628), (20, 2049314), (29, 1413320), (40, 1024657), (58, 706660), (89, 460520), (116, 353330), (145, 282664), (178, 230260), (232, 176665), (290, 141332), (356, 115130), (397, 103240), (445, 92104), (580, 70666), (712, 57565), (794, 51620), (890, 46052), (1160, 35333), (1588, 25810), (1780, 23026), (1985, 20648), (2581, 15880), (3176, 12905), (3560, 11513), (3970, 10324), (5162, 7940)]