1989386640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{145423}}^1$

素因数の和:145461

約数の個数: 120

約数和(自身を含む): 7032704640

約数和(自身を除く): 5043318000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1520, 1710, 2280, 2736, 3420, 4560, 6840, 13680, 145423, 290846, 436269, 581692, 727115, 872538, 1163384, 1308807, 1454230, 1745076, 2181345, 2326768, 2617614, 2763037, 2908460, 3490152, 4362690, 5235228, 5526074, 5816920, 6544035, 6980304, 8289111, 8725380, 10470456, 11052148, 11633840, 13088070, 13815185, 16578222, 17450760, 20940912, 22104296, 24867333, 26176140, 27630370, 33156444, 34901520, 41445555, 44208592, 49734666, 52352280, 55260740, 66312888, 82891110, 99469332, 104704560, 110521480, 124336665, 132625776, 165782220, 198938664, 221042960, 248673330, 331564440, 397877328, 497346660, 663128880, 994693320, 1989386640]

約数ペア:

[(1, 1989386640), (2, 994693320), (3, 663128880), (4, 497346660), (5, 397877328), (6, 331564440), (8, 248673330), (9, 221042960), (10, 198938664), (12, 165782220), (15, 132625776), (16, 124336665), (18, 110521480), (19, 104704560), (20, 99469332), (24, 82891110), (30, 66312888), (36, 55260740), (38, 52352280), (40, 49734666), (45, 44208592), (48, 41445555), (57, 34901520), (60, 33156444), (72, 27630370), (76, 26176140), (80, 24867333), (90, 22104296), (95, 20940912), (114, 17450760), (120, 16578222), (144, 13815185), (152, 13088070), (171, 11633840), (180, 11052148), (190, 10470456), (228, 8725380), (240, 8289111), (285, 6980304), (304, 6544035), (342, 5816920), (360, 5526074), (380, 5235228), (456, 4362690), (570, 3490152), (684, 2908460), (720, 2763037), (760, 2617614), (855, 2326768), (912, 2181345), (1140, 1745076), (1368, 1454230), (1520, 1308807), (1710, 1163384), (2280, 872538), (2736, 727115), (3420, 581692), (4560, 436269), (6840, 290846), (13680, 145423)]