19974850

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:320

約数の個数: 72

約数和(自身を含む): 44782848

約数和(自身を除く): 24807998

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 49, 50, 62, 70, 98, 155, 175, 217, 245, 263, 310, 350, 434, 490, 526, 775, 1085, 1225, 1315, 1519, 1550, 1841, 2170, 2450, 2630, 3038, 3682, 5425, 6575, 7595, 8153, 9205, 10850, 12887, 13150, 15190, 16306, 18410, 25774, 37975, 40765, 46025, 57071, 64435, 75950, 81530, 92050, 114142, 128870, 203825, 285355, 322175, 399497, 407650, 570710, 644350, 798994, 1426775, 1997485, 2853550, 3994970, 9987425, 19974850]

約数ペア:

[(1, 19974850), (2, 9987425), (5, 3994970), (7, 2853550), (10, 1997485), (14, 1426775), (25, 798994), (31, 644350), (35, 570710), (49, 407650), (50, 399497), (62, 322175), (70, 285355), (98, 203825), (155, 128870), (175, 114142), (217, 92050), (245, 81530), (263, 75950), (310, 64435), (350, 57071), (434, 46025), (490, 40765), (526, 37975), (775, 25774), (1085, 18410), (1225, 16306), (1315, 15190), (1519, 13150), (1550, 12887), (1841, 10850), (2170, 9205), (2450, 8153), (2630, 7595), (3038, 6575), (3682, 5425)]