2020019985

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{28393}}^1$

素因数の和:28455

約数の個数: 64

約数和(自身を含む): 3925186560

約数和(自身を除く): 1905166575

約数列:

[1, 3, 5, 9, 15, 17, 27, 31, 45, 51, 85, 93, 135, 153, 155, 255, 279, 459, 465, 527, 765, 837, 1395, 1581, 2295, 2635, 4185, 4743, 7905, 14229, 23715, 28393, 71145, 85179, 141965, 255537, 425895, 482681, 766611, 880183, 1277685, 1448043, 2413405, 2640549, 3833055, 4344129, 4400915, 7240215, 7921647, 13032387, 13202745, 14963111, 21720645, 23764941, 39608235, 44889333, 65161935, 74815555, 118824705, 134667999, 224446665, 404003997, 673339995, 2020019985]

約数ペア:

[(1, 2020019985), (3, 673339995), (5, 404003997), (9, 224446665), (15, 134667999), (17, 118824705), (27, 74815555), (31, 65161935), (45, 44889333), (51, 39608235), (85, 23764941), (93, 21720645), (135, 14963111), (153, 13202745), (155, 13032387), (255, 7921647), (279, 7240215), (459, 4400915), (465, 4344129), (527, 3833055), (765, 2640549), (837, 2413405), (1395, 1448043), (1581, 1277685), (2295, 880183), (2635, 766611), (4185, 482681), (4743, 425895), (7905, 255537), (14229, 141965), (23715, 85179), (28393, 71145)]