20032718320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8077709}}^1$

素因数の和:8077753

約数の個数: 40

約数和(自身を含む): 48078529920

約数和(自身を除く): 28045811600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8077709, 16155418, 32310836, 40388545, 64621672, 80777090, 129243344, 161554180, 250408979, 323108360, 500817958, 646216720, 1001635916, 1252044895, 2003271832, 2504089790, 4006543664, 5008179580, 10016359160, 20032718320]

約数ペア:

[(1, 20032718320), (2, 10016359160), (4, 5008179580), (5, 4006543664), (8, 2504089790), (10, 2003271832), (16, 1252044895), (20, 1001635916), (31, 646216720), (40, 500817958), (62, 323108360), (80, 250408979), (124, 161554180), (155, 129243344), (248, 80777090), (310, 64621672), (496, 40388545), (620, 32310836), (1240, 16155418), (2480, 8077709)]