20159300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{929}}^1$

素因数の和:981

約数の個数: 72

約数和(自身を含む): 51663360

約数和(自身を除く): 31504060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 140, 155, 175, 217, 310, 350, 434, 620, 700, 775, 868, 929, 1085, 1550, 1858, 2170, 3100, 3716, 4340, 4645, 5425, 6503, 9290, 10850, 13006, 18580, 21700, 23225, 26012, 28799, 32515, 46450, 57598, 65030, 92900, 115196, 130060, 143995, 162575, 201593, 287990, 325150, 403186, 575980, 650300, 719975, 806372, 1007965, 1439950, 2015930, 2879900, 4031860, 5039825, 10079650, 20159300]

約数ペア:

[(1, 20159300), (2, 10079650), (4, 5039825), (5, 4031860), (7, 2879900), (10, 2015930), (14, 1439950), (20, 1007965), (25, 806372), (28, 719975), (31, 650300), (35, 575980), (50, 403186), (62, 325150), (70, 287990), (100, 201593), (124, 162575), (140, 143995), (155, 130060), (175, 115196), (217, 92900), (310, 65030), (350, 57598), (434, 46450), (620, 32515), (700, 28799), (775, 26012), (868, 23225), (929, 21700), (1085, 18580), (1550, 13006), (1858, 10850), (2170, 9290), (3100, 6503), (3716, 5425), (4340, 4645)]