49542920

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:212

約数の個数: 128

約数和(自身を含む): 136512000

約数和(自身を除く): 86969080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 49, 56, 70, 92, 98, 115, 140, 157, 161, 184, 196, 230, 245, 280, 314, 322, 343, 392, 460, 490, 628, 644, 686, 785, 805, 920, 980, 1099, 1127, 1256, 1288, 1372, 1570, 1610, 1715, 1960, 2198, 2254, 2744, 3140, 3220, 3430, 3611, 4396, 4508, 5495, 5635, 6280, 6440, 6860, 7222, 7693, 7889, 8792, 9016, 10990, 11270, 13720, 14444, 15386, 15778, 18055, 21980, 22540, 25277, 28888, 30772, 31556, 36110, 38465, 39445, 43960, 45080, 50554, 53851, 61544, 63112, 72220, 76930, 78890, 101108, 107702, 126385, 144440, 153860, 157780, 176939, 202216, 215404, 252770, 269255, 307720, 315560, 353878, 430808, 505540, 538510, 707756, 884695, 1011080, 1077020, 1238573, 1415512, 1769390, 2154040, 2477146, 3538780, 4954292, 6192865, 7077560, 9908584, 12385730, 24771460, 49542920]

約数ペア:

[(1, 49542920), (2, 24771460), (4, 12385730), (5, 9908584), (7, 7077560), (8, 6192865), (10, 4954292), (14, 3538780), (20, 2477146), (23, 2154040), (28, 1769390), (35, 1415512), (40, 1238573), (46, 1077020), (49, 1011080), (56, 884695), (70, 707756), (92, 538510), (98, 505540), (115, 430808), (140, 353878), (157, 315560), (161, 307720), (184, 269255), (196, 252770), (230, 215404), (245, 202216), (280, 176939), (314, 157780), (322, 153860), (343, 144440), (392, 126385), (460, 107702), (490, 101108), (628, 78890), (644, 76930), (686, 72220), (785, 63112), (805, 61544), (920, 53851), (980, 50554), (1099, 45080), (1127, 43960), (1256, 39445), (1288, 38465), (1372, 36110), (1570, 31556), (1610, 30772), (1715, 28888), (1960, 25277), (2198, 22540), (2254, 21980), (2744, 18055), (3140, 15778), (3220, 15386), (3430, 14444), (3611, 13720), (4396, 11270), (4508, 10990), (5495, 9016), (5635, 8792), (6280, 7889), (6440, 7693), (6860, 7222)]