31399900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1447}}^1$

素因数の和:1499

約数の個数: 72

約数和(自身を含む): 80439296

約数和(自身を除く): 49039396

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, 1085, 1447, 1550, 2170, 2894, 3100, 4340, 5425, 5788, 7235, 10129, 10850, 14470, 20258, 21700, 28940, 36175, 40516, 44857, 50645, 72350, 89714, 101290, 144700, 179428, 202580, 224285, 253225, 313999, 448570, 506450, 627998, 897140, 1012900, 1121425, 1255996, 1569995, 2242850, 3139990, 4485700, 6279980, 7849975, 15699950, 31399900]

約数ペア:

[(1, 31399900), (2, 15699950), (4, 7849975), (5, 6279980), (7, 4485700), (10, 3139990), (14, 2242850), (20, 1569995), (25, 1255996), (28, 1121425), (31, 1012900), (35, 897140), (50, 627998), (62, 506450), (70, 448570), (100, 313999), (124, 253225), (140, 224285), (155, 202580), (175, 179428), (217, 144700), (310, 101290), (350, 89714), (434, 72350), (620, 50645), (700, 44857), (775, 40516), (868, 36175), (1085, 28940), (1447, 21700), (1550, 20258), (2170, 14470), (2894, 10850), (3100, 10129), (4340, 7235), (5425, 5788)]