8045997040

素因数分解:

$2^4\times 5^1\times {\mathrm{821}}^1\times {\mathrm{122503}}^1$

素因数の和:123337

約数の個数: 40

約数和(自身を含む): 18729881568

約数和(自身を除く): 10683884528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 821, 1642, 3284, 4105, 6568, 8210, 13136, 16420, 32840, 65680, 122503, 245006, 490012, 612515, 980024, 1225030, 1960048, 2450060, 4900120, 9800240, 100574963, 201149926, 402299852, 502874815, 804599704, 1005749630, 1609199408, 2011499260, 4022998520, 8045997040]

約数ペア:

[(1, 8045997040), (2, 4022998520), (4, 2011499260), (5, 1609199408), (8, 1005749630), (10, 804599704), (16, 502874815), (20, 402299852), (40, 201149926), (80, 100574963), (821, 9800240), (1642, 4900120), (3284, 2450060), (4105, 1960048), (6568, 1225030), (8210, 980024), (13136, 612515), (16420, 490012), (32840, 245006), (65680, 122503)]