20512321100

素因数分解:

$2^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{283}}^1\times {\mathrm{9929}}^1$

素因数の和:10299

約数の個数: 72

約数和(自身を含む): 45285486960

約数和(自身を除く): 24773165860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 73, 100, 146, 283, 292, 365, 566, 730, 1132, 1415, 1460, 1825, 2830, 3650, 5660, 7075, 7300, 9929, 14150, 19858, 20659, 28300, 39716, 41318, 49645, 82636, 99290, 103295, 198580, 206590, 248225, 413180, 496450, 516475, 724817, 992900, 1032950, 1449634, 2065900, 2809907, 2899268, 3624085, 5619814, 7248170, 11239628, 14049535, 14496340, 18120425, 28099070, 36240850, 56198140, 70247675, 72481700, 140495350, 205123211, 280990700, 410246422, 820492844, 1025616055, 2051232110, 4102464220, 5128080275, 10256160550, 20512321100]

約数ペア:

[(1, 20512321100), (2, 10256160550), (4, 5128080275), (5, 4102464220), (10, 2051232110), (20, 1025616055), (25, 820492844), (50, 410246422), (73, 280990700), (100, 205123211), (146, 140495350), (283, 72481700), (292, 70247675), (365, 56198140), (566, 36240850), (730, 28099070), (1132, 18120425), (1415, 14496340), (1460, 14049535), (1825, 11239628), (2830, 7248170), (3650, 5619814), (5660, 3624085), (7075, 2899268), (7300, 2809907), (9929, 2065900), (14150, 1449634), (19858, 1032950), (20659, 992900), (28300, 724817), (39716, 516475), (41318, 496450), (49645, 413180), (82636, 248225), (99290, 206590), (103295, 198580)]