51081520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:267

約数の個数: 120

約数和(自身を含む): 140709744

約数和(自身を除く): 89628224

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 83, 98, 112, 140, 157, 166, 196, 245, 280, 314, 332, 392, 415, 490, 560, 581, 628, 664, 784, 785, 830, 980, 1099, 1162, 1256, 1328, 1570, 1660, 1960, 2198, 2324, 2512, 2905, 3140, 3320, 3920, 4067, 4396, 4648, 5495, 5810, 6280, 6640, 7693, 8134, 8792, 9296, 10990, 11620, 12560, 13031, 15386, 16268, 17584, 20335, 21980, 23240, 26062, 30772, 32536, 38465, 40670, 43960, 46480, 52124, 61544, 65072, 65155, 76930, 81340, 87920, 91217, 104248, 123088, 130310, 153860, 162680, 182434, 208496, 260620, 307720, 325360, 364868, 456085, 521240, 615440, 638519, 729736, 912170, 1042480, 1277038, 1459472, 1824340, 2554076, 3192595, 3648680, 5108152, 6385190, 7297360, 10216304, 12770380, 25540760, 51081520]

約数ペア:

[(1, 51081520), (2, 25540760), (4, 12770380), (5, 10216304), (7, 7297360), (8, 6385190), (10, 5108152), (14, 3648680), (16, 3192595), (20, 2554076), (28, 1824340), (35, 1459472), (40, 1277038), (49, 1042480), (56, 912170), (70, 729736), (80, 638519), (83, 615440), (98, 521240), (112, 456085), (140, 364868), (157, 325360), (166, 307720), (196, 260620), (245, 208496), (280, 182434), (314, 162680), (332, 153860), (392, 130310), (415, 123088), (490, 104248), (560, 91217), (581, 87920), (628, 81340), (664, 76930), (784, 65155), (785, 65072), (830, 61544), (980, 52124), (1099, 46480), (1162, 43960), (1256, 40670), (1328, 38465), (1570, 32536), (1660, 30772), (1960, 26062), (2198, 23240), (2324, 21980), (2512, 20335), (2905, 17584), (3140, 16268), (3320, 15386), (3920, 13031), (4067, 12560), (4396, 11620), (4648, 10990), (5495, 9296), (5810, 8792), (6280, 8134), (6640, 7693)]