19922700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:256

約数の個数: 144

約数和(自身を含む): 67495680

約数和(自身を除く): 47572980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 53, 60, 70, 75, 84, 100, 105, 106, 140, 150, 159, 175, 179, 210, 212, 265, 300, 318, 350, 358, 371, 420, 525, 530, 537, 636, 700, 716, 742, 795, 895, 1050, 1060, 1074, 1113, 1253, 1325, 1484, 1590, 1790, 1855, 2100, 2148, 2226, 2506, 2650, 2685, 3180, 3580, 3710, 3759, 3975, 4452, 4475, 5012, 5300, 5370, 5565, 6265, 7420, 7518, 7950, 8950, 9275, 9487, 10740, 11130, 12530, 13425, 15036, 15900, 17900, 18550, 18795, 18974, 22260, 25060, 26850, 27825, 28461, 31325, 37100, 37590, 37948, 47435, 53700, 55650, 56922, 62650, 66409, 75180, 93975, 94870, 111300, 113844, 125300, 132818, 142305, 187950, 189740, 199227, 237175, 265636, 284610, 332045, 375900, 398454, 474350, 569220, 664090, 711525, 796908, 948700, 996135, 1328180, 1423050, 1660225, 1992270, 2846100, 3320450, 3984540, 4980675, 6640900, 9961350, 19922700]

約数ペア:

[(1, 19922700), (2, 9961350), (3, 6640900), (4, 4980675), (5, 3984540), (6, 3320450), (7, 2846100), (10, 1992270), (12, 1660225), (14, 1423050), (15, 1328180), (20, 996135), (21, 948700), (25, 796908), (28, 711525), (30, 664090), (35, 569220), (42, 474350), (50, 398454), (53, 375900), (60, 332045), (70, 284610), (75, 265636), (84, 237175), (100, 199227), (105, 189740), (106, 187950), (140, 142305), (150, 132818), (159, 125300), (175, 113844), (179, 111300), (210, 94870), (212, 93975), (265, 75180), (300, 66409), (318, 62650), (350, 56922), (358, 55650), (371, 53700), (420, 47435), (525, 37948), (530, 37590), (537, 37100), (636, 31325), (700, 28461), (716, 27825), (742, 26850), (795, 25060), (895, 22260), (1050, 18974), (1060, 18795), (1074, 18550), (1113, 17900), (1253, 15900), (1325, 15036), (1484, 13425), (1590, 12530), (1790, 11130), (1855, 10740), (2100, 9487), (2148, 9275), (2226, 8950), (2506, 7950), (2650, 7518), (2685, 7420), (3180, 6265), (3580, 5565), (3710, 5370), (3759, 5300), (3975, 5012), (4452, 4475)]