1990534320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{4273}}^1$

素因数の和:4939

約数の個数: 120

約数和(自身を含む): 6696776736

約数和(自身を除く): 4706242416

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 647, 720, 1294, 1941, 2588, 3235, 3882, 4273, 5176, 5823, 6470, 7764, 8546, 9705, 10352, 11646, 12819, 12940, 15528, 17092, 19410, 21365, 23292, 25638, 25880, 29115, 31056, 34184, 38457, 38820, 42730, 46584, 51276, 51760, 58230, 64095, 68368, 76914, 77640, 85460, 93168, 102552, 116460, 128190, 153828, 155280, 170920, 192285, 205104, 232920, 256380, 307656, 341840, 384570, 465840, 512760, 615312, 769140, 1025520, 1538280, 2764631, 3076560, 5529262, 8293893, 11058524, 13823155, 16587786, 22117048, 24881679, 27646310, 33175572, 41469465, 44234096, 49763358, 55292620, 66351144, 82938930, 99526716, 110585240, 124408395, 132702288, 165877860, 199053432, 221170480, 248816790, 331755720, 398106864, 497633580, 663511440, 995267160, 1990534320]

約数ペア:

[(1, 1990534320), (2, 995267160), (3, 663511440), (4, 497633580), (5, 398106864), (6, 331755720), (8, 248816790), (9, 221170480), (10, 199053432), (12, 165877860), (15, 132702288), (16, 124408395), (18, 110585240), (20, 99526716), (24, 82938930), (30, 66351144), (36, 55292620), (40, 49763358), (45, 44234096), (48, 41469465), (60, 33175572), (72, 27646310), (80, 24881679), (90, 22117048), (120, 16587786), (144, 13823155), (180, 11058524), (240, 8293893), (360, 5529262), (647, 3076560), (720, 2764631), (1294, 1538280), (1941, 1025520), (2588, 769140), (3235, 615312), (3882, 512760), (4273, 465840), (5176, 384570), (5823, 341840), (6470, 307656), (7764, 256380), (8546, 232920), (9705, 205104), (10352, 192285), (11646, 170920), (12819, 155280), (12940, 153828), (15528, 128190), (17092, 116460), (19410, 102552), (21365, 93168), (23292, 85460), (25638, 77640), (25880, 76914), (29115, 68368), (31056, 64095), (34184, 58230), (38457, 51760), (38820, 51276), (42730, 46584)]