1991481200

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{3911}}^1$

素因数の和:4015

約数の個数: 120

約数和(自身を含む): 5112827520

約数和(自身を除く): 3121346320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 67, 76, 80, 95, 100, 134, 152, 190, 200, 268, 304, 335, 380, 400, 475, 536, 670, 760, 950, 1072, 1273, 1340, 1520, 1675, 1900, 2546, 2680, 3350, 3800, 3911, 5092, 5360, 6365, 6700, 7600, 7822, 10184, 12730, 13400, 15644, 19555, 20368, 25460, 26800, 31288, 31825, 39110, 50920, 62576, 63650, 74309, 78220, 97775, 101840, 127300, 148618, 156440, 195550, 254600, 262037, 297236, 312880, 371545, 391100, 509200, 524074, 594472, 743090, 782200, 1048148, 1188944, 1310185, 1486180, 1564400, 1857725, 2096296, 2620370, 2972360, 3715450, 4192592, 4978703, 5240740, 5944720, 6550925, 7430900, 9957406, 10481480, 13101850, 14861800, 19914812, 20962960, 24893515, 26203700, 29723600, 39829624, 49787030, 52407400, 79659248, 99574060, 104814800, 124467575, 199148120, 248935150, 398296240, 497870300, 995740600, 1991481200]

約数ペア:

[(1, 1991481200), (2, 995740600), (4, 497870300), (5, 398296240), (8, 248935150), (10, 199148120), (16, 124467575), (19, 104814800), (20, 99574060), (25, 79659248), (38, 52407400), (40, 49787030), (50, 39829624), (67, 29723600), (76, 26203700), (80, 24893515), (95, 20962960), (100, 19914812), (134, 14861800), (152, 13101850), (190, 10481480), (200, 9957406), (268, 7430900), (304, 6550925), (335, 5944720), (380, 5240740), (400, 4978703), (475, 4192592), (536, 3715450), (670, 2972360), (760, 2620370), (950, 2096296), (1072, 1857725), (1273, 1564400), (1340, 1486180), (1520, 1310185), (1675, 1188944), (1900, 1048148), (2546, 782200), (2680, 743090), (3350, 594472), (3800, 524074), (3911, 509200), (5092, 391100), (5360, 371545), (6365, 312880), (6700, 297236), (7600, 262037), (7822, 254600), (10184, 195550), (12730, 156440), (13400, 148618), (15644, 127300), (19555, 101840), (20368, 97775), (25460, 78220), (26800, 74309), (31288, 63650), (31825, 62576), (39110, 50920)]