20804940130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{503}}^1\times {\mathrm{3089}}^1$

素因数の和:3715

約数の個数: 64

約数和(自身を含む): 40815290880

約数和(自身を除く): 20010350750

約数列:

[1, 2, 5, 10, 13, 26, 65, 103, 130, 206, 503, 515, 1006, 1030, 1339, 2515, 2678, 3089, 5030, 6178, 6539, 6695, 13078, 13390, 15445, 30890, 32695, 40157, 51809, 65390, 80314, 103618, 200785, 259045, 318167, 401570, 518090, 636334, 673517, 1347034, 1553767, 1590835, 3107534, 3181670, 3367585, 4136171, 6735170, 7768835, 8272342, 15537670, 20198971, 20680855, 40397942, 41361710, 100994855, 160038001, 201989710, 320076002, 800190005, 1600380010, 2080494013, 4160988026, 10402470065, 20804940130]

約数ペア:

[(1, 20804940130), (2, 10402470065), (5, 4160988026), (10, 2080494013), (13, 1600380010), (26, 800190005), (65, 320076002), (103, 201989710), (130, 160038001), (206, 100994855), (503, 41361710), (515, 40397942), (1006, 20680855), (1030, 20198971), (1339, 15537670), (2515, 8272342), (2678, 7768835), (3089, 6735170), (5030, 4136171), (6178, 3367585), (6539, 3181670), (6695, 3107534), (13078, 1590835), (13390, 1553767), (15445, 1347034), (30890, 673517), (32695, 636334), (40157, 518090), (51809, 401570), (65390, 318167), (80314, 259045), (103618, 200785)]