20644650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3529}}^1$

素因数の和:3560

約数の個数: 72

約数和(自身を含む): 59748780

約数和(自身を除く): 39104130

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 39, 45, 50, 65, 75, 78, 90, 117, 130, 150, 195, 225, 234, 325, 390, 450, 585, 650, 975, 1170, 1950, 2925, 3529, 5850, 7058, 10587, 17645, 21174, 31761, 35290, 45877, 52935, 63522, 88225, 91754, 105870, 137631, 158805, 176450, 229385, 264675, 275262, 317610, 412893, 458770, 529350, 688155, 794025, 825786, 1146925, 1376310, 1588050, 2064465, 2293850, 3440775, 4128930, 6881550, 10322325, 20644650]

約数ペア:

[(1, 20644650), (2, 10322325), (3, 6881550), (5, 4128930), (6, 3440775), (9, 2293850), (10, 2064465), (13, 1588050), (15, 1376310), (18, 1146925), (25, 825786), (26, 794025), (30, 688155), (39, 529350), (45, 458770), (50, 412893), (65, 317610), (75, 275262), (78, 264675), (90, 229385), (117, 176450), (130, 158805), (150, 137631), (195, 105870), (225, 91754), (234, 88225), (325, 63522), (390, 52935), (450, 45877), (585, 35290), (650, 31761), (975, 21174), (1170, 17645), (1950, 10587), (2925, 7058), (3529, 5850)]