54945040

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7717}}^1$

素因数の和:7819

約数の個数: 40

約数和(自身を含む): 129199320

約数和(自身を除く): 74254280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 7717, 15434, 30868, 38585, 61736, 77170, 123472, 154340, 308680, 617360, 686813, 1373626, 2747252, 3434065, 5494504, 6868130, 10989008, 13736260, 27472520, 54945040]

約数ペア:

[(1, 54945040), (2, 27472520), (4, 13736260), (5, 10989008), (8, 6868130), (10, 5494504), (16, 3434065), (20, 2747252), (40, 1373626), (80, 686813), (89, 617360), (178, 308680), (356, 154340), (445, 123472), (712, 77170), (890, 61736), (1424, 38585), (1780, 30868), (3560, 15434), (7120, 7717)]