131177920

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{5189}}^1$

素因数の和:5285

約数の個数: 56

約数和(自身を含む): 316382400

約数和(自身を除く): 185204480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 790, 1264, 1580, 2528, 3160, 5056, 5189, 6320, 10378, 12640, 20756, 25280, 25945, 41512, 51890, 83024, 103780, 166048, 207560, 332096, 409931, 415120, 819862, 830240, 1639724, 1660480, 2049655, 3279448, 4099310, 6558896, 8198620, 13117792, 16397240, 26235584, 32794480, 65588960, 131177920]

約数ペア:

[(1, 131177920), (2, 65588960), (4, 32794480), (5, 26235584), (8, 16397240), (10, 13117792), (16, 8198620), (20, 6558896), (32, 4099310), (40, 3279448), (64, 2049655), (79, 1660480), (80, 1639724), (158, 830240), (160, 819862), (316, 415120), (320, 409931), (395, 332096), (632, 207560), (790, 166048), (1264, 103780), (1580, 83024), (2528, 51890), (3160, 41512), (5056, 25945), (5189, 25280), (6320, 20756), (10378, 12640)]