21513802400

素因数分解:

$2^5\times 5^2\times {\mathrm{53}}^1\times {\mathrm{507401}}^1$

素因数の和:507474

約数の個数: 72

約数和(自身を含む): 53511629724

約数和(自身を除く): 31997827324

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 53, 80, 100, 106, 160, 200, 212, 265, 400, 424, 530, 800, 848, 1060, 1325, 1696, 2120, 2650, 4240, 5300, 8480, 10600, 21200, 42400, 507401, 1014802, 2029604, 2537005, 4059208, 5074010, 8118416, 10148020, 12685025, 16236832, 20296040, 25370050, 26892253, 40592080, 50740100, 53784506, 81184160, 101480200, 107569012, 134461265, 202960400, 215138024, 268922530, 405920800, 430276048, 537845060, 672306325, 860552096, 1075690120, 1344612650, 2151380240, 2689225300, 4302760480, 5378450600, 10756901200, 21513802400]

約数ペア:

[(1, 21513802400), (2, 10756901200), (4, 5378450600), (5, 4302760480), (8, 2689225300), (10, 2151380240), (16, 1344612650), (20, 1075690120), (25, 860552096), (32, 672306325), (40, 537845060), (50, 430276048), (53, 405920800), (80, 268922530), (100, 215138024), (106, 202960400), (160, 134461265), (200, 107569012), (212, 101480200), (265, 81184160), (400, 53784506), (424, 50740100), (530, 40592080), (800, 26892253), (848, 25370050), (1060, 20296040), (1325, 16236832), (1696, 12685025), (2120, 10148020), (2650, 8118416), (4240, 5074010), (5300, 4059208), (8480, 2537005), (10600, 2029604), (21200, 1014802), (42400, 507401)]