29980720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:219

約数の個数: 160

約数和(自身を含む): 90279936

約数和(自身を除く): 60299216

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 80, 88, 110, 112, 124, 140, 154, 155, 157, 176, 217, 220, 248, 280, 308, 310, 314, 341, 385, 434, 440, 496, 560, 616, 620, 628, 682, 770, 785, 868, 880, 1085, 1099, 1232, 1240, 1256, 1364, 1540, 1570, 1705, 1727, 1736, 2170, 2198, 2387, 2480, 2512, 2728, 3080, 3140, 3410, 3454, 3472, 4340, 4396, 4774, 4867, 5456, 5495, 6160, 6280, 6820, 6908, 8635, 8680, 8792, 9548, 9734, 10990, 11935, 12089, 12560, 13640, 13816, 17270, 17360, 17584, 19096, 19468, 21980, 23870, 24178, 24335, 27280, 27632, 34069, 34540, 38192, 38936, 43960, 47740, 48356, 48670, 53537, 60445, 68138, 69080, 77872, 87920, 95480, 96712, 97340, 107074, 120890, 136276, 138160, 170345, 190960, 193424, 194680, 214148, 241780, 267685, 272552, 340690, 374759, 389360, 428296, 483560, 535370, 545104, 681380, 749518, 856592, 967120, 1070740, 1362760, 1499036, 1873795, 2141480, 2725520, 2998072, 3747590, 4282960, 5996144, 7495180, 14990360, 29980720]

約数ペア:

[(1, 29980720), (2, 14990360), (4, 7495180), (5, 5996144), (7, 4282960), (8, 3747590), (10, 2998072), (11, 2725520), (14, 2141480), (16, 1873795), (20, 1499036), (22, 1362760), (28, 1070740), (31, 967120), (35, 856592), (40, 749518), (44, 681380), (55, 545104), (56, 535370), (62, 483560), (70, 428296), (77, 389360), (80, 374759), (88, 340690), (110, 272552), (112, 267685), (124, 241780), (140, 214148), (154, 194680), (155, 193424), (157, 190960), (176, 170345), (217, 138160), (220, 136276), (248, 120890), (280, 107074), (308, 97340), (310, 96712), (314, 95480), (341, 87920), (385, 77872), (434, 69080), (440, 68138), (496, 60445), (560, 53537), (616, 48670), (620, 48356), (628, 47740), (682, 43960), (770, 38936), (785, 38192), (868, 34540), (880, 34069), (1085, 27632), (1099, 27280), (1232, 24335), (1240, 24178), (1256, 23870), (1364, 21980), (1540, 19468), (1570, 19096), (1705, 17584), (1727, 17360), (1736, 17270), (2170, 13816), (2198, 13640), (2387, 12560), (2480, 12089), (2512, 11935), (2728, 10990), (3080, 9734), (3140, 9548), (3410, 8792), (3454, 8680), (3472, 8635), (4340, 6908), (4396, 6820), (4774, 6280), (4867, 6160), (5456, 5495)]