4420780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{347}}^1$

素因数の和:383

約数の個数: 72

約数和(自身を含む): 11663568

約数和(自身を除く): 7242788

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 347, 364, 455, 490, 637, 694, 910, 980, 1274, 1388, 1735, 1820, 2429, 2548, 3185, 3470, 4511, 4858, 6370, 6940, 9022, 9716, 12145, 12740, 17003, 18044, 22555, 24290, 31577, 34006, 45110, 48580, 63154, 68012, 85015, 90220, 126308, 157885, 170030, 221039, 315770, 340060, 442078, 631540, 884156, 1105195, 2210390, 4420780]

約数ペア:

[(1, 4420780), (2, 2210390), (4, 1105195), (5, 884156), (7, 631540), (10, 442078), (13, 340060), (14, 315770), (20, 221039), (26, 170030), (28, 157885), (35, 126308), (49, 90220), (52, 85015), (65, 68012), (70, 63154), (91, 48580), (98, 45110), (130, 34006), (140, 31577), (182, 24290), (196, 22555), (245, 18044), (260, 17003), (347, 12740), (364, 12145), (455, 9716), (490, 9022), (637, 6940), (694, 6370), (910, 4858), (980, 4511), (1274, 3470), (1388, 3185), (1735, 2548), (1820, 2429)]