678743985

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{6997}}^1$

素因数の和:7257

約数の個数: 32

約数和(自身を含む): 1128637440

約数和(自身を除く): 449893455

約数列:

[1, 3, 5, 15, 29, 87, 145, 223, 435, 669, 1115, 3345, 6467, 6997, 19401, 20991, 32335, 34985, 97005, 104955, 202913, 608739, 1014565, 1560331, 3043695, 4680993, 7801655, 23404965, 45249599, 135748797, 226247995, 678743985]

約数ペア:

[(1, 678743985), (3, 226247995), (5, 135748797), (15, 45249599), (29, 23404965), (87, 7801655), (145, 4680993), (223, 3043695), (435, 1560331), (669, 1014565), (1115, 608739), (3345, 202913), (6467, 104955), (6997, 97005), (19401, 34985), (20991, 32335)]