20635860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{7019}}^1$

素因数の和:7045

約数の個数: 72

約数和(自身を含む): 67223520

約数和(自身を除く): 46587660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 7019, 14038, 21057, 28076, 35095, 42114, 49133, 70190, 84228, 98266, 105285, 140380, 147399, 196532, 210570, 245665, 294798, 343931, 421140, 491330, 589596, 687862, 736995, 982660, 1031793, 1375724, 1473990, 1719655, 2063586, 2947980, 3439310, 4127172, 5158965, 6878620, 10317930, 20635860]

約数ペア:

[(1, 20635860), (2, 10317930), (3, 6878620), (4, 5158965), (5, 4127172), (6, 3439310), (7, 2947980), (10, 2063586), (12, 1719655), (14, 1473990), (15, 1375724), (20, 1031793), (21, 982660), (28, 736995), (30, 687862), (35, 589596), (42, 491330), (49, 421140), (60, 343931), (70, 294798), (84, 245665), (98, 210570), (105, 196532), (140, 147399), (147, 140380), (196, 105285), (210, 98266), (245, 84228), (294, 70190), (420, 49133), (490, 42114), (588, 35095), (735, 28076), (980, 21057), (1470, 14038), (2940, 7019)]