20236487140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{264391}}^1$

素因数の和:264532

約数の個数: 48

約数和(自身を含む): 43973677440

約数和(自身を除く): 23737190300

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 172, 178, 215, 356, 430, 445, 860, 890, 1780, 3827, 7654, 15308, 19135, 38270, 76540, 264391, 528782, 1057564, 1321955, 2643910, 5287820, 11368813, 22737626, 23530799, 45475252, 47061598, 56844065, 94123196, 113688130, 117653995, 227376260, 235307990, 470615980, 1011824357, 2023648714, 4047297428, 5059121785, 10118243570, 20236487140]

約数ペア:

[(1, 20236487140), (2, 10118243570), (4, 5059121785), (5, 4047297428), (10, 2023648714), (20, 1011824357), (43, 470615980), (86, 235307990), (89, 227376260), (172, 117653995), (178, 113688130), (215, 94123196), (356, 56844065), (430, 47061598), (445, 45475252), (860, 23530799), (890, 22737626), (1780, 11368813), (3827, 5287820), (7654, 2643910), (15308, 1321955), (19135, 1057564), (38270, 528782), (76540, 264391)]