15490700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 36664320

約数和(自身を除く): 21173620

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 76, 95, 100, 124, 155, 190, 263, 310, 380, 475, 526, 589, 620, 775, 950, 1052, 1178, 1315, 1550, 1900, 2356, 2630, 2945, 3100, 4997, 5260, 5890, 6575, 8153, 9994, 11780, 13150, 14725, 16306, 19988, 24985, 26300, 29450, 32612, 40765, 49970, 58900, 81530, 99940, 124925, 154907, 163060, 203825, 249850, 309814, 407650, 499700, 619628, 774535, 815300, 1549070, 3098140, 3872675, 7745350, 15490700]

約数ペア:

[(1, 15490700), (2, 7745350), (4, 3872675), (5, 3098140), (10, 1549070), (19, 815300), (20, 774535), (25, 619628), (31, 499700), (38, 407650), (50, 309814), (62, 249850), (76, 203825), (95, 163060), (100, 154907), (124, 124925), (155, 99940), (190, 81530), (263, 58900), (310, 49970), (380, 40765), (475, 32612), (526, 29450), (589, 26300), (620, 24985), (775, 19988), (950, 16306), (1052, 14725), (1178, 13150), (1315, 11780), (1550, 9994), (1900, 8153), (2356, 6575), (2630, 5890), (2945, 5260), (3100, 4997)]