40438040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:444

約数の個数: 64

約数和(自身を含む): 94802400

約数和(自身を除く): 54364360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 89, 148, 178, 185, 296, 307, 356, 370, 445, 614, 712, 740, 890, 1228, 1480, 1535, 1780, 2456, 3070, 3293, 3560, 6140, 6586, 11359, 12280, 13172, 16465, 22718, 26344, 27323, 32930, 45436, 54646, 56795, 65860, 90872, 109292, 113590, 131720, 136615, 218584, 227180, 273230, 454360, 546460, 1010951, 1092920, 2021902, 4043804, 5054755, 8087608, 10109510, 20219020, 40438040]

約数ペア:

[(1, 40438040), (2, 20219020), (4, 10109510), (5, 8087608), (8, 5054755), (10, 4043804), (20, 2021902), (37, 1092920), (40, 1010951), (74, 546460), (89, 454360), (148, 273230), (178, 227180), (185, 218584), (296, 136615), (307, 131720), (356, 113590), (370, 109292), (445, 90872), (614, 65860), (712, 56795), (740, 54646), (890, 45436), (1228, 32930), (1480, 27323), (1535, 26344), (1780, 22718), (2456, 16465), (3070, 13172), (3293, 12280), (3560, 11359), (6140, 6586)]