400521520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37643}}^1$

素因数の和:37682

約数の個数: 80

約数和(自身を含む): 1120285440

約数和(自身を除く): 719763920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2660, 5320, 10640, 37643, 75286, 150572, 188215, 263501, 301144, 376430, 527002, 602288, 715217, 752860, 1054004, 1317505, 1430434, 1505720, 2108008, 2635010, 2860868, 3011440, 3576085, 4216016, 5006519, 5270020, 5721736, 7152170, 10013038, 10540040, 11443472, 14304340, 20026076, 21080080, 25032595, 28608680, 40052152, 50065190, 57217360, 80104304, 100130380, 200260760, 400521520]

約数ペア:

[(1, 400521520), (2, 200260760), (4, 100130380), (5, 80104304), (7, 57217360), (8, 50065190), (10, 40052152), (14, 28608680), (16, 25032595), (19, 21080080), (20, 20026076), (28, 14304340), (35, 11443472), (38, 10540040), (40, 10013038), (56, 7152170), (70, 5721736), (76, 5270020), (80, 5006519), (95, 4216016), (112, 3576085), (133, 3011440), (140, 2860868), (152, 2635010), (190, 2108008), (266, 1505720), (280, 1430434), (304, 1317505), (380, 1054004), (532, 752860), (560, 715217), (665, 602288), (760, 527002), (1064, 376430), (1330, 301144), (1520, 263501), (2128, 188215), (2660, 150572), (5320, 75286), (10640, 37643)]