19558620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{563}}^1$

素因数の和:771

約数の個数: 72

約数和(自身を含む): 59741136

約数和(自身を除く): 40182516

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 193, 386, 563, 579, 772, 965, 1126, 1158, 1689, 1737, 1930, 2252, 2316, 2815, 2895, 3378, 3474, 3860, 5067, 5630, 5790, 6756, 6948, 8445, 8685, 10134, 11260, 11580, 16890, 17370, 20268, 25335, 33780, 34740, 50670, 101340, 108659, 217318, 325977, 434636, 543295, 651954, 977931, 1086590, 1303908, 1629885, 1955862, 2173180, 3259770, 3911724, 4889655, 6519540, 9779310, 19558620]

約数ペア:

[(1, 19558620), (2, 9779310), (3, 6519540), (4, 4889655), (5, 3911724), (6, 3259770), (9, 2173180), (10, 1955862), (12, 1629885), (15, 1303908), (18, 1086590), (20, 977931), (30, 651954), (36, 543295), (45, 434636), (60, 325977), (90, 217318), (180, 108659), (193, 101340), (386, 50670), (563, 34740), (579, 33780), (772, 25335), (965, 20268), (1126, 17370), (1158, 16890), (1689, 11580), (1737, 11260), (1930, 10134), (2252, 8685), (2316, 8445), (2815, 6948), (2895, 6756), (3378, 5790), (3474, 5630), (3860, 5067)]