19542420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{719}}^1$

素因数の和:885

約数の個数: 72

約数和(自身を含む): 59754240

約数和(自身を除く): 40211820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 151, 180, 302, 453, 604, 719, 755, 906, 1359, 1438, 1510, 1812, 2157, 2265, 2718, 2876, 3020, 3595, 4314, 4530, 5436, 6471, 6795, 7190, 8628, 9060, 10785, 12942, 13590, 14380, 21570, 25884, 27180, 32355, 43140, 64710, 108569, 129420, 217138, 325707, 434276, 542845, 651414, 977121, 1085690, 1302828, 1628535, 1954242, 2171380, 3257070, 3908484, 4885605, 6514140, 9771210, 19542420]

約数ペア:

[(1, 19542420), (2, 9771210), (3, 6514140), (4, 4885605), (5, 3908484), (6, 3257070), (9, 2171380), (10, 1954242), (12, 1628535), (15, 1302828), (18, 1085690), (20, 977121), (30, 651414), (36, 542845), (45, 434276), (60, 325707), (90, 217138), (151, 129420), (180, 108569), (302, 64710), (453, 43140), (604, 32355), (719, 27180), (755, 25884), (906, 21570), (1359, 14380), (1438, 13590), (1510, 12942), (1812, 10785), (2157, 9060), (2265, 8628), (2718, 7190), (2876, 6795), (3020, 6471), (3595, 5436), (4314, 4530)]