1636700680

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{171203}}^1$

素因数の和:171453

約数の個数: 32

約数和(自身を含む): 3698006400

約数和(自身を除く): 2061305720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 9560, 171203, 342406, 684812, 856015, 1369624, 1712030, 3424060, 6848120, 40917517, 81835034, 163670068, 204587585, 327340136, 409175170, 818350340, 1636700680]

約数ペア:

[(1, 1636700680), (2, 818350340), (4, 409175170), (5, 327340136), (8, 204587585), (10, 163670068), (20, 81835034), (40, 40917517), (239, 6848120), (478, 3424060), (956, 1712030), (1195, 1369624), (1912, 856015), (2390, 684812), (4780, 342406), (9560, 171203)]