19649340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{631}}^1$

素因数の和:819

約数の個数: 72

約数和(自身を含む): 60042528

約数和(自身を除く): 40393188

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 173, 180, 346, 519, 631, 692, 865, 1038, 1262, 1557, 1730, 1893, 2076, 2524, 2595, 3114, 3155, 3460, 3786, 5190, 5679, 6228, 6310, 7572, 7785, 9465, 10380, 11358, 12620, 15570, 18930, 22716, 28395, 31140, 37860, 56790, 109163, 113580, 218326, 327489, 436652, 545815, 654978, 982467, 1091630, 1309956, 1637445, 1964934, 2183260, 3274890, 3929868, 4912335, 6549780, 9824670, 19649340]

約数ペア:

[(1, 19649340), (2, 9824670), (3, 6549780), (4, 4912335), (5, 3929868), (6, 3274890), (9, 2183260), (10, 1964934), (12, 1637445), (15, 1309956), (18, 1091630), (20, 982467), (30, 654978), (36, 545815), (45, 436652), (60, 327489), (90, 218326), (173, 113580), (180, 109163), (346, 56790), (519, 37860), (631, 31140), (692, 28395), (865, 22716), (1038, 18930), (1262, 15570), (1557, 12620), (1730, 11358), (1893, 10380), (2076, 9465), (2524, 7785), (2595, 7572), (3114, 6310), (3155, 6228), (3460, 5679), (3786, 5190)]