209457520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3361}}^1$

素因数の和:3434

約数の個数: 80

約数和(自身を含む): 525278880

約数和(自身を除く): 315821360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 190, 205, 304, 328, 380, 410, 656, 760, 779, 820, 1520, 1558, 1640, 3116, 3280, 3361, 3895, 6232, 6722, 7790, 12464, 13444, 15580, 16805, 26888, 31160, 33610, 53776, 62320, 63859, 67220, 127718, 134440, 137801, 255436, 268880, 275602, 319295, 510872, 551204, 638590, 689005, 1021744, 1102408, 1277180, 1378010, 2204816, 2554360, 2618219, 2756020, 5108720, 5236438, 5512040, 10472876, 11024080, 13091095, 20945752, 26182190, 41891504, 52364380, 104728760, 209457520]

約数ペア:

[(1, 209457520), (2, 104728760), (4, 52364380), (5, 41891504), (8, 26182190), (10, 20945752), (16, 13091095), (19, 11024080), (20, 10472876), (38, 5512040), (40, 5236438), (41, 5108720), (76, 2756020), (80, 2618219), (82, 2554360), (95, 2204816), (152, 1378010), (164, 1277180), (190, 1102408), (205, 1021744), (304, 689005), (328, 638590), (380, 551204), (410, 510872), (656, 319295), (760, 275602), (779, 268880), (820, 255436), (1520, 137801), (1558, 134440), (1640, 127718), (3116, 67220), (3280, 63859), (3361, 62320), (3895, 53776), (6232, 33610), (6722, 31160), (7790, 26888), (12464, 16805), (13444, 15580)]