19872860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:307

約数の個数: 96

約数和(自身を含む): 52039680

約数和(自身を除く): 32166820

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 62, 70, 76, 95, 124, 133, 140, 155, 190, 217, 241, 266, 310, 380, 434, 482, 532, 589, 620, 665, 868, 964, 1085, 1178, 1205, 1330, 1687, 2170, 2356, 2410, 2660, 2945, 3374, 4123, 4340, 4579, 4820, 5890, 6748, 7471, 8246, 8435, 9158, 11780, 14942, 16492, 16870, 18316, 20615, 22895, 29884, 32053, 33740, 37355, 41230, 45790, 52297, 64106, 74710, 82460, 91580, 104594, 128212, 141949, 149420, 160265, 209188, 261485, 283898, 320530, 522970, 567796, 641060, 709745, 993643, 1045940, 1419490, 1987286, 2838980, 3974572, 4968215, 9936430, 19872860]

約数ペア:

[(1, 19872860), (2, 9936430), (4, 4968215), (5, 3974572), (7, 2838980), (10, 1987286), (14, 1419490), (19, 1045940), (20, 993643), (28, 709745), (31, 641060), (35, 567796), (38, 522970), (62, 320530), (70, 283898), (76, 261485), (95, 209188), (124, 160265), (133, 149420), (140, 141949), (155, 128212), (190, 104594), (217, 91580), (241, 82460), (266, 74710), (310, 64106), (380, 52297), (434, 45790), (482, 41230), (532, 37355), (589, 33740), (620, 32053), (665, 29884), (868, 22895), (964, 20615), (1085, 18316), (1178, 16870), (1205, 16492), (1330, 14942), (1687, 11780), (2170, 9158), (2356, 8435), (2410, 8246), (2660, 7471), (2945, 6748), (3374, 5890), (4123, 4820), (4340, 4579)]