19973790

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{24659}}^1$

素因数の和:24678

約数の個数: 40

約数和(自身を含む): 53709480

約数和(自身を除く): 33735690

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 24659, 49318, 73977, 123295, 147954, 221931, 246590, 369885, 443862, 665793, 739770, 1109655, 1331586, 1997379, 2219310, 3328965, 3994758, 6657930, 9986895, 19973790]

約数ペア:

[(1, 19973790), (2, 9986895), (3, 6657930), (5, 3994758), (6, 3328965), (9, 2219310), (10, 1997379), (15, 1331586), (18, 1109655), (27, 739770), (30, 665793), (45, 443862), (54, 369885), (81, 246590), (90, 221931), (135, 147954), (162, 123295), (270, 73977), (405, 49318), (810, 24659)]