19738680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12653}}^1$

素因数の和:12680

約数の個数: 64

約数和(自身を含む): 63776160

約数和(自身を除く): 44037480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12653, 25306, 37959, 50612, 63265, 75918, 101224, 126530, 151836, 164489, 189795, 253060, 303672, 328978, 379590, 493467, 506120, 657956, 759180, 822445, 986934, 1315912, 1518360, 1644890, 1973868, 2467335, 3289780, 3947736, 4934670, 6579560, 9869340, 19738680]

約数ペア:

[(1, 19738680), (2, 9869340), (3, 6579560), (4, 4934670), (5, 3947736), (6, 3289780), (8, 2467335), (10, 1973868), (12, 1644890), (13, 1518360), (15, 1315912), (20, 986934), (24, 822445), (26, 759180), (30, 657956), (39, 506120), (40, 493467), (52, 379590), (60, 328978), (65, 303672), (78, 253060), (104, 189795), (120, 164489), (130, 151836), (156, 126530), (195, 101224), (260, 75918), (312, 63265), (390, 50612), (520, 37959), (780, 25306), (1560, 12653)]