20512007175

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1308581}}^1$

素因数の和:1308624

約数の個数: 48

約数和(自身を含む): 38943400320

約数和(自身を除く): 18431393145

約数列:

[1, 3, 5, 11, 15, 19, 25, 33, 55, 57, 75, 95, 165, 209, 275, 285, 475, 627, 825, 1045, 1425, 3135, 5225, 15675, 1308581, 3925743, 6542905, 14394391, 19628715, 24863039, 32714525, 43183173, 71971955, 74589117, 98143575, 124315195, 215915865, 273493429, 359859775, 372945585, 621575975, 820480287, 1079579325, 1367467145, 1864727925, 4102401435, 6837335725, 20512007175]

約数ペア:

[(1, 20512007175), (3, 6837335725), (5, 4102401435), (11, 1864727925), (15, 1367467145), (19, 1079579325), (25, 820480287), (33, 621575975), (55, 372945585), (57, 359859775), (75, 273493429), (95, 215915865), (165, 124315195), (209, 98143575), (275, 74589117), (285, 71971955), (475, 43183173), (627, 32714525), (825, 24863039), (1045, 19628715), (1425, 14394391), (3135, 6542905), (5225, 3925743), (15675, 1308581)]