19615831720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{168463}}^1$

素因数の和:168586

約数の個数: 64

約数和(自身を含む): 45849162240

約数和(自身を除く): 26233330520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 82, 142, 164, 205, 284, 328, 355, 410, 568, 710, 820, 1420, 1640, 2840, 2911, 5822, 11644, 14555, 23288, 29110, 58220, 116440, 168463, 336926, 673852, 842315, 1347704, 1684630, 3369260, 6738520, 6906983, 11960873, 13813966, 23921746, 27627932, 34534915, 47843492, 55255864, 59804365, 69069830, 95686984, 119608730, 138139660, 239217460, 276279320, 478434920, 490395793, 980791586, 1961583172, 2451978965, 3923166344, 4903957930, 9807915860, 19615831720]

約数ペア:

[(1, 19615831720), (2, 9807915860), (4, 4903957930), (5, 3923166344), (8, 2451978965), (10, 1961583172), (20, 980791586), (40, 490395793), (41, 478434920), (71, 276279320), (82, 239217460), (142, 138139660), (164, 119608730), (205, 95686984), (284, 69069830), (328, 59804365), (355, 55255864), (410, 47843492), (568, 34534915), (710, 27627932), (820, 23921746), (1420, 13813966), (1640, 11960873), (2840, 6906983), (2911, 6738520), (5822, 3369260), (11644, 1684630), (14555, 1347704), (23288, 842315), (29110, 673852), (58220, 336926), (116440, 168463)]