40395320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1621}}^1$

素因数の和:1728

約数の個数: 64

約数和(自身を含む): 105105600

約数和(自身を除く): 64710280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 623, 712, 890, 1246, 1621, 1780, 2492, 3115, 3242, 3560, 4984, 6230, 6484, 8105, 11347, 12460, 12968, 16210, 22694, 24920, 32420, 45388, 56735, 64840, 90776, 113470, 144269, 226940, 288538, 453880, 577076, 721345, 1009883, 1154152, 1442690, 2019766, 2885380, 4039532, 5049415, 5770760, 8079064, 10098830, 20197660, 40395320]

約数ペア:

[(1, 40395320), (2, 20197660), (4, 10098830), (5, 8079064), (7, 5770760), (8, 5049415), (10, 4039532), (14, 2885380), (20, 2019766), (28, 1442690), (35, 1154152), (40, 1009883), (56, 721345), (70, 577076), (89, 453880), (140, 288538), (178, 226940), (280, 144269), (356, 113470), (445, 90776), (623, 64840), (712, 56735), (890, 45388), (1246, 32420), (1621, 24920), (1780, 22694), (2492, 16210), (3115, 12968), (3242, 12460), (3560, 11347), (4984, 8105), (6230, 6484)]