128439376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:356

約数の個数: 80

約数和(自身を含む): 281232000

約数和(自身を除く): 152792624

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 104, 107, 116, 199, 208, 214, 232, 377, 398, 428, 464, 754, 796, 856, 1391, 1508, 1592, 1712, 2587, 2782, 3016, 3103, 3184, 5174, 5564, 5771, 6032, 6206, 10348, 11128, 11542, 12412, 20696, 21293, 22256, 23084, 24824, 40339, 41392, 42586, 46168, 49648, 75023, 80678, 85172, 92336, 150046, 161356, 170344, 276809, 300092, 322712, 340688, 553618, 600184, 617497, 645424, 1107236, 1200368, 1234994, 2214472, 2469988, 4428944, 4939976, 8027461, 9879952, 16054922, 32109844, 64219688, 128439376]

約数ペア:

[(1, 128439376), (2, 64219688), (4, 32109844), (8, 16054922), (13, 9879952), (16, 8027461), (26, 4939976), (29, 4428944), (52, 2469988), (58, 2214472), (104, 1234994), (107, 1200368), (116, 1107236), (199, 645424), (208, 617497), (214, 600184), (232, 553618), (377, 340688), (398, 322712), (428, 300092), (464, 276809), (754, 170344), (796, 161356), (856, 150046), (1391, 92336), (1508, 85172), (1592, 80678), (1712, 75023), (2587, 49648), (2782, 46168), (3016, 42586), (3103, 41392), (3184, 40339), (5174, 24824), (5564, 23084), (5771, 22256), (6032, 21293), (6206, 20696), (10348, 12412), (11128, 11542)]