19965240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1789}}^1$

素因数の和:1837

約数の個数: 96

約数和(自身を含む): 67017600

約数和(自身を除く): 47052360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 744, 930, 1116, 1240, 1395, 1789, 1860, 2232, 2790, 3578, 3720, 5367, 5580, 7156, 8945, 10734, 11160, 14312, 16101, 17890, 21468, 26835, 32202, 35780, 42936, 53670, 55459, 64404, 71560, 80505, 107340, 110918, 128808, 161010, 166377, 214680, 221836, 277295, 322020, 332754, 443672, 499131, 554590, 644040, 665508, 831885, 998262, 1109180, 1331016, 1663770, 1996524, 2218360, 2495655, 3327540, 3993048, 4991310, 6655080, 9982620, 19965240]

約数ペア:

[(1, 19965240), (2, 9982620), (3, 6655080), (4, 4991310), (5, 3993048), (6, 3327540), (8, 2495655), (9, 2218360), (10, 1996524), (12, 1663770), (15, 1331016), (18, 1109180), (20, 998262), (24, 831885), (30, 665508), (31, 644040), (36, 554590), (40, 499131), (45, 443672), (60, 332754), (62, 322020), (72, 277295), (90, 221836), (93, 214680), (120, 166377), (124, 161010), (155, 128808), (180, 110918), (186, 107340), (248, 80505), (279, 71560), (310, 64404), (360, 55459), (372, 53670), (465, 42936), (558, 35780), (620, 32202), (744, 26835), (930, 21468), (1116, 17890), (1240, 16101), (1395, 14312), (1789, 11160), (1860, 10734), (2232, 8945), (2790, 7156), (3578, 5580), (3720, 5367)]