209665820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{115201}}^1$

素因数の和:115230

約数の個数: 48

約数和(自身を含む): 541910208

約数和(自身を除く): 332244388

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 115201, 230402, 460804, 576005, 806407, 1152010, 1497613, 1612814, 2304020, 2995226, 3225628, 4032035, 5990452, 7488065, 8064070, 10483291, 14976130, 16128140, 20966582, 29952260, 41933164, 52416455, 104832910, 209665820]

約数ペア:

[(1, 209665820), (2, 104832910), (4, 52416455), (5, 41933164), (7, 29952260), (10, 20966582), (13, 16128140), (14, 14976130), (20, 10483291), (26, 8064070), (28, 7488065), (35, 5990452), (52, 4032035), (65, 3225628), (70, 2995226), (91, 2304020), (130, 1612814), (140, 1497613), (182, 1152010), (260, 806407), (364, 576005), (455, 460804), (910, 230402), (1820, 115201)]