78419120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75403}}^1$

素因数の和:75429

約数の個数: 40

約数和(自身を含む): 196352016

約数和(自身を除く): 117932896

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 75403, 150806, 301612, 377015, 603224, 754030, 980239, 1206448, 1508060, 1960478, 3016120, 3920956, 4901195, 6032240, 7841912, 9802390, 15683824, 19604780, 39209560, 78419120]

約数ペア:

[(1, 78419120), (2, 39209560), (4, 19604780), (5, 15683824), (8, 9802390), (10, 7841912), (13, 6032240), (16, 4901195), (20, 3920956), (26, 3016120), (40, 1960478), (52, 1508060), (65, 1206448), (80, 980239), (104, 754030), (130, 603224), (208, 377015), (260, 301612), (520, 150806), (1040, 75403)]