19301840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:268

約数の個数: 80

約数和(自身を含む): 47663616

約数和(自身を除く): 28361776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 43, 62, 80, 86, 124, 155, 172, 181, 215, 248, 310, 344, 362, 430, 496, 620, 688, 724, 860, 905, 1240, 1333, 1448, 1720, 1810, 2480, 2666, 2896, 3440, 3620, 5332, 5611, 6665, 7240, 7783, 10664, 11222, 13330, 14480, 15566, 21328, 22444, 26660, 28055, 31132, 38915, 44888, 53320, 56110, 62264, 77830, 89776, 106640, 112220, 124528, 155660, 224440, 241273, 311320, 448880, 482546, 622640, 965092, 1206365, 1930184, 2412730, 3860368, 4825460, 9650920, 19301840]

約数ペア:

[(1, 19301840), (2, 9650920), (4, 4825460), (5, 3860368), (8, 2412730), (10, 1930184), (16, 1206365), (20, 965092), (31, 622640), (40, 482546), (43, 448880), (62, 311320), (80, 241273), (86, 224440), (124, 155660), (155, 124528), (172, 112220), (181, 106640), (215, 89776), (248, 77830), (310, 62264), (344, 56110), (362, 53320), (430, 44888), (496, 38915), (620, 31132), (688, 28055), (724, 26660), (860, 22444), (905, 21328), (1240, 15566), (1333, 14480), (1448, 13330), (1720, 11222), (1810, 10664), (2480, 7783), (2666, 7240), (2896, 6665), (3440, 5611), (3620, 5332)]