28787440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32713}}^1$

素因数の和:32737

約数の個数: 40

約数和(自身を含む): 73017648

約数和(自身を除く): 44230208

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 32713, 65426, 130852, 163565, 261704, 327130, 359843, 523408, 654260, 719686, 1308520, 1439372, 1799215, 2617040, 2878744, 3598430, 5757488, 7196860, 14393720, 28787440]

約数ペア:

[(1, 28787440), (2, 14393720), (4, 7196860), (5, 5757488), (8, 3598430), (10, 2878744), (11, 2617040), (16, 1799215), (20, 1439372), (22, 1308520), (40, 719686), (44, 654260), (55, 523408), (80, 359843), (88, 327130), (110, 261704), (176, 163565), (220, 130852), (440, 65426), (880, 32713)]