19630980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{571}}^1$

素因数の和:777

約数の個数: 72

約数和(自身を含む): 59963904

約数和(自身を除く): 40332924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 191, 382, 571, 573, 764, 955, 1142, 1146, 1713, 1719, 1910, 2284, 2292, 2855, 2865, 3426, 3438, 3820, 5139, 5710, 5730, 6852, 6876, 8565, 8595, 10278, 11420, 11460, 17130, 17190, 20556, 25695, 34260, 34380, 51390, 102780, 109061, 218122, 327183, 436244, 545305, 654366, 981549, 1090610, 1308732, 1635915, 1963098, 2181220, 3271830, 3926196, 4907745, 6543660, 9815490, 19630980]

約数ペア:

[(1, 19630980), (2, 9815490), (3, 6543660), (4, 4907745), (5, 3926196), (6, 3271830), (9, 2181220), (10, 1963098), (12, 1635915), (15, 1308732), (18, 1090610), (20, 981549), (30, 654366), (36, 545305), (45, 436244), (60, 327183), (90, 218122), (180, 109061), (191, 102780), (382, 51390), (571, 34380), (573, 34260), (764, 25695), (955, 20556), (1142, 17190), (1146, 17130), (1713, 11460), (1719, 11420), (1910, 10278), (2284, 8595), (2292, 8565), (2855, 6876), (2865, 6852), (3426, 5730), (3438, 5710), (3820, 5139)]