40378480

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6389}}^1$

素因数の和:6481

約数の個数: 40

約数和(自身を含む): 95083200

約数和(自身を除く): 54704720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 6389, 12778, 25556, 31945, 51112, 63890, 102224, 127780, 255560, 504731, 511120, 1009462, 2018924, 2523655, 4037848, 5047310, 8075696, 10094620, 20189240, 40378480]

約数ペア:

[(1, 40378480), (2, 20189240), (4, 10094620), (5, 8075696), (8, 5047310), (10, 4037848), (16, 2523655), (20, 2018924), (40, 1009462), (79, 511120), (80, 504731), (158, 255560), (316, 127780), (395, 102224), (632, 63890), (790, 51112), (1264, 31945), (1580, 25556), (3160, 12778), (6320, 6389)]