28759460

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 62052480

約数和(自身を除く): 33293020

約数列:

[1, 2, 4, 5, 10, 20, 89, 107, 151, 178, 214, 302, 356, 428, 445, 535, 604, 755, 890, 1070, 1510, 1780, 2140, 3020, 9523, 13439, 16157, 19046, 26878, 32314, 38092, 47615, 53756, 64628, 67195, 80785, 95230, 134390, 161570, 190460, 268780, 323140, 1437973, 2875946, 5751892, 7189865, 14379730, 28759460]

約数ペア:

[(1, 28759460), (2, 14379730), (4, 7189865), (5, 5751892), (10, 2875946), (20, 1437973), (89, 323140), (107, 268780), (151, 190460), (178, 161570), (214, 134390), (302, 95230), (356, 80785), (428, 67195), (445, 64628), (535, 53756), (604, 47615), (755, 38092), (890, 32314), (1070, 26878), (1510, 19046), (1780, 16157), (2140, 13439), (3020, 9523)]