449540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:61

約数の個数: 72

約数和(自身を含む): 1229760

約数和(自身を除く): 780220

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 52, 65, 70, 76, 91, 95, 130, 133, 140, 169, 182, 190, 247, 260, 266, 338, 364, 380, 455, 494, 532, 665, 676, 845, 910, 988, 1183, 1235, 1330, 1690, 1729, 1820, 2366, 2470, 2660, 3211, 3380, 3458, 4732, 4940, 5915, 6422, 6916, 8645, 11830, 12844, 16055, 17290, 22477, 23660, 32110, 34580, 44954, 64220, 89908, 112385, 224770, 449540]

約数ペア:

[(1, 449540), (2, 224770), (4, 112385), (5, 89908), (7, 64220), (10, 44954), (13, 34580), (14, 32110), (19, 23660), (20, 22477), (26, 17290), (28, 16055), (35, 12844), (38, 11830), (52, 8645), (65, 6916), (70, 6422), (76, 5915), (91, 4940), (95, 4732), (130, 3458), (133, 3380), (140, 3211), (169, 2660), (182, 2470), (190, 2366), (247, 1820), (260, 1729), (266, 1690), (338, 1330), (364, 1235), (380, 1183), (455, 988), (494, 910), (532, 845), (665, 676)]