1290972488

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{288679}}^1$

素因数の和:288741

約数の個数: 32

約数和(自身を含む): 2667403200

約数和(自身を除く): 1376430712

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 288679, 577358, 1154716, 2309432, 3752827, 7505654, 12413197, 15011308, 24826394, 30022616, 49652788, 99305576, 161371561, 322743122, 645486244, 1290972488]

約数ペア:

[(1, 1290972488), (2, 645486244), (4, 322743122), (8, 161371561), (13, 99305576), (26, 49652788), (43, 30022616), (52, 24826394), (86, 15011308), (104, 12413197), (172, 7505654), (344, 3752827), (559, 2309432), (1118, 1154716), (2236, 577358), (4472, 288679)]