40269280

素因数分解:

$2^5\times 5^1\times {\mathrm{389}}^1\times {\mathrm{647}}^1$

素因数の和:1051

約数の個数: 48

約数和(自身を含む): 95528160

約数和(自身を除く): 55258880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 389, 647, 778, 1294, 1556, 1945, 2588, 3112, 3235, 3890, 5176, 6224, 6470, 7780, 10352, 12448, 12940, 15560, 20704, 25880, 31120, 51760, 62240, 103520, 251683, 503366, 1006732, 1258415, 2013464, 2516830, 4026928, 5033660, 8053856, 10067320, 20134640, 40269280]

約数ペア:

[(1, 40269280), (2, 20134640), (4, 10067320), (5, 8053856), (8, 5033660), (10, 4026928), (16, 2516830), (20, 2013464), (32, 1258415), (40, 1006732), (80, 503366), (160, 251683), (389, 103520), (647, 62240), (778, 51760), (1294, 31120), (1556, 25880), (1945, 20704), (2588, 15560), (3112, 12940), (3235, 12448), (3890, 10352), (5176, 7780), (6224, 6470)]