30388820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2819}}^1$

素因数の和:2853

約数の個数: 72

約数和(自身を含む): 81012960

約数和(自身を除く): 50624140

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 2819, 5390, 5638, 10780, 11276, 14095, 19733, 28190, 31009, 39466, 56380, 62018, 78932, 98665, 124036, 138131, 155045, 197330, 217063, 276262, 310090, 394660, 434126, 552524, 620180, 690655, 868252, 1085315, 1381310, 1519441, 2170630, 2762620, 3038882, 4341260, 6077764, 7597205, 15194410, 30388820]

約数ペア:

[(1, 30388820), (2, 15194410), (4, 7597205), (5, 6077764), (7, 4341260), (10, 3038882), (11, 2762620), (14, 2170630), (20, 1519441), (22, 1381310), (28, 1085315), (35, 868252), (44, 690655), (49, 620180), (55, 552524), (70, 434126), (77, 394660), (98, 310090), (110, 276262), (140, 217063), (154, 197330), (196, 155045), (220, 138131), (245, 124036), (308, 98665), (385, 78932), (490, 62018), (539, 56380), (770, 39466), (980, 31009), (1078, 28190), (1540, 19733), (2156, 14095), (2695, 11276), (2819, 10780), (5390, 5638)]