251991376

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9109}}^1$

素因数の和:9156

約数の個数: 80

約数和(自身を含む): 632598400

約数和(自身を除く): 380607024

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 38, 52, 56, 76, 91, 104, 112, 133, 152, 182, 208, 247, 266, 304, 364, 494, 532, 728, 988, 1064, 1456, 1729, 1976, 2128, 3458, 3952, 6916, 9109, 13832, 18218, 27664, 36436, 63763, 72872, 118417, 127526, 145744, 173071, 236834, 255052, 346142, 473668, 510104, 692284, 828919, 947336, 1020208, 1211497, 1384568, 1657838, 1894672, 2249923, 2422994, 2769136, 3315676, 4499846, 4845988, 6631352, 8999692, 9691976, 13262704, 15749461, 17999384, 19383952, 31498922, 35998768, 62997844, 125995688, 251991376]

約数ペア:

[(1, 251991376), (2, 125995688), (4, 62997844), (7, 35998768), (8, 31498922), (13, 19383952), (14, 17999384), (16, 15749461), (19, 13262704), (26, 9691976), (28, 8999692), (38, 6631352), (52, 4845988), (56, 4499846), (76, 3315676), (91, 2769136), (104, 2422994), (112, 2249923), (133, 1894672), (152, 1657838), (182, 1384568), (208, 1211497), (247, 1020208), (266, 947336), (304, 828919), (364, 692284), (494, 510104), (532, 473668), (728, 346142), (988, 255052), (1064, 236834), (1456, 173071), (1729, 145744), (1976, 127526), (2128, 118417), (3458, 72872), (3952, 63763), (6916, 36436), (9109, 27664), (13832, 18218)]