278746020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{221227}}^1$

素因数の和:221249

約数の個数: 72

約数和(自身を含む): 966323904

約数和(自身を除く): 687577884

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 221227, 442454, 663681, 884908, 1106135, 1327362, 1548589, 1991043, 2212270, 2654724, 3097178, 3318405, 3982086, 4424540, 4645767, 6194356, 6636810, 7742945, 7964172, 9291534, 9955215, 13273620, 13937301, 15485890, 18583068, 19910430, 23228835, 27874602, 30971780, 39820860, 46457670, 55749204, 69686505, 92915340, 139373010, 278746020]

約数ペア:

[(1, 278746020), (2, 139373010), (3, 92915340), (4, 69686505), (5, 55749204), (6, 46457670), (7, 39820860), (9, 30971780), (10, 27874602), (12, 23228835), (14, 19910430), (15, 18583068), (18, 15485890), (20, 13937301), (21, 13273620), (28, 9955215), (30, 9291534), (35, 7964172), (36, 7742945), (42, 6636810), (45, 6194356), (60, 4645767), (63, 4424540), (70, 3982086), (84, 3318405), (90, 3097178), (105, 2654724), (126, 2212270), (140, 1991043), (180, 1548589), (210, 1327362), (252, 1106135), (315, 884908), (420, 663681), (630, 442454), (1260, 221227)]