20019600

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:174

約数の個数: 180

約数和(自身を含む): 71360016

約数和(自身を除く): 51340416

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 67, 72, 75, 80, 83, 90, 100, 120, 134, 144, 150, 166, 180, 200, 201, 225, 240, 249, 268, 300, 332, 335, 360, 400, 402, 415, 450, 498, 536, 600, 603, 664, 670, 720, 747, 804, 830, 900, 996, 1005, 1072, 1200, 1206, 1245, 1328, 1340, 1494, 1608, 1660, 1675, 1800, 1992, 2010, 2075, 2412, 2490, 2680, 2988, 3015, 3216, 3320, 3350, 3600, 3735, 3984, 4020, 4150, 4824, 4980, 5025, 5360, 5561, 5976, 6030, 6225, 6640, 6700, 7470, 8040, 8300, 9648, 9960, 10050, 11122, 11952, 12060, 12450, 13400, 14940, 15075, 16080, 16600, 16683, 18675, 19920, 20100, 22244, 24120, 24900, 26800, 27805, 29880, 30150, 33200, 33366, 37350, 40200, 44488, 48240, 49800, 50049, 55610, 59760, 60300, 66732, 74700, 80400, 83415, 88976, 99600, 100098, 111220, 120600, 133464, 139025, 149400, 166830, 200196, 222440, 241200, 250245, 266928, 278050, 298800, 333660, 400392, 417075, 444880, 500490, 556100, 667320, 800784, 834150, 1000980, 1112200, 1251225, 1334640, 1668300, 2001960, 2224400, 2502450, 3336600, 4003920, 5004900, 6673200, 10009800, 20019600]

約数ペア:

[(1, 20019600), (2, 10009800), (3, 6673200), (4, 5004900), (5, 4003920), (6, 3336600), (8, 2502450), (9, 2224400), (10, 2001960), (12, 1668300), (15, 1334640), (16, 1251225), (18, 1112200), (20, 1000980), (24, 834150), (25, 800784), (30, 667320), (36, 556100), (40, 500490), (45, 444880), (48, 417075), (50, 400392), (60, 333660), (67, 298800), (72, 278050), (75, 266928), (80, 250245), (83, 241200), (90, 222440), (100, 200196), (120, 166830), (134, 149400), (144, 139025), (150, 133464), (166, 120600), (180, 111220), (200, 100098), (201, 99600), (225, 88976), (240, 83415), (249, 80400), (268, 74700), (300, 66732), (332, 60300), (335, 59760), (360, 55610), (400, 50049), (402, 49800), (415, 48240), (450, 44488), (498, 40200), (536, 37350), (600, 33366), (603, 33200), (664, 30150), (670, 29880), (720, 27805), (747, 26800), (804, 24900), (830, 24120), (900, 22244), (996, 20100), (1005, 19920), (1072, 18675), (1200, 16683), (1206, 16600), (1245, 16080), (1328, 15075), (1340, 14940), (1494, 13400), (1608, 12450), (1660, 12060), (1675, 11952), (1800, 11122), (1992, 10050), (2010, 9960), (2075, 9648), (2412, 8300), (2490, 8040), (2680, 7470), (2988, 6700), (3015, 6640), (3216, 6225), (3320, 6030), (3350, 5976), (3600, 5561), (3735, 5360), (3984, 5025), (4020, 4980), (4150, 4824)]