39819640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2003}}^1$

素因数の和:2092

約数の個数: 64

約数和(自身を含む): 103887360

約数和(自身を除く): 64067720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2003, 2485, 2840, 3976, 4006, 4970, 8012, 9940, 10015, 14021, 16024, 19880, 20030, 28042, 40060, 56084, 70105, 80120, 112168, 140210, 142213, 280420, 284426, 560840, 568852, 711065, 995491, 1137704, 1422130, 1990982, 2844260, 3981964, 4977455, 5688520, 7963928, 9954910, 19909820, 39819640]

約数ペア:

[(1, 39819640), (2, 19909820), (4, 9954910), (5, 7963928), (7, 5688520), (8, 4977455), (10, 3981964), (14, 2844260), (20, 1990982), (28, 1422130), (35, 1137704), (40, 995491), (56, 711065), (70, 568852), (71, 560840), (140, 284426), (142, 280420), (280, 142213), (284, 140210), (355, 112168), (497, 80120), (568, 70105), (710, 56084), (994, 40060), (1420, 28042), (1988, 20030), (2003, 19880), (2485, 16024), (2840, 14021), (3976, 10015), (4006, 9940), (4970, 8012)]