31374980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17239}}^1$

素因数の和:17268

約数の個数: 48

約数和(自身を含む): 81096960

約数和(自身を除く): 49721980

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 17239, 34478, 68956, 86195, 120673, 172390, 224107, 241346, 344780, 448214, 482692, 603365, 896428, 1120535, 1206730, 1568749, 2241070, 2413460, 3137498, 4482140, 6274996, 7843745, 15687490, 31374980]

約数ペア:

[(1, 31374980), (2, 15687490), (4, 7843745), (5, 6274996), (7, 4482140), (10, 3137498), (13, 2413460), (14, 2241070), (20, 1568749), (26, 1206730), (28, 1120535), (35, 896428), (52, 603365), (65, 482692), (70, 448214), (91, 344780), (130, 241346), (140, 224107), (182, 172390), (260, 120673), (364, 86195), (455, 68956), (910, 34478), (1820, 17239)]