668928100000

素因数分解:

$2^5\times 5^5\times {\mathrm{6689281}}^1$

素因数の和:6689316

約数の個数: 72

約数和(自身を含む): 1646085135996

約数和(自身を除く): 977157035996

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 2000, 2500, 3125, 4000, 5000, 6250, 10000, 12500, 20000, 25000, 50000, 100000, 6689281, 13378562, 26757124, 33446405, 53514248, 66892810, 107028496, 133785620, 167232025, 214056992, 267571240, 334464050, 535142480, 668928100, 836160125, 1070284960, 1337856200, 1672320250, 2675712400, 3344640500, 4180800625, 5351424800, 6689281000, 8361601250, 13378562000, 16723202500, 20904003125, 26757124000, 33446405000, 41808006250, 66892810000, 83616012500, 133785620000, 167232025000, 334464050000, 668928100000]

約数ペア:

[(1, 668928100000), (2, 334464050000), (4, 167232025000), (5, 133785620000), (8, 83616012500), (10, 66892810000), (16, 41808006250), (20, 33446405000), (25, 26757124000), (32, 20904003125), (40, 16723202500), (50, 13378562000), (80, 8361601250), (100, 6689281000), (125, 5351424800), (160, 4180800625), (200, 3344640500), (250, 2675712400), (400, 1672320250), (500, 1337856200), (625, 1070284960), (800, 836160125), (1000, 668928100), (1250, 535142480), (2000, 334464050), (2500, 267571240), (3125, 214056992), (4000, 167232025), (5000, 133785620), (6250, 107028496), (10000, 66892810), (12500, 53514248), (20000, 33446405), (25000, 26757124), (50000, 13378562), (100000, 6689281)]