8788894540

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{25679}}^1$

素因数の和:25954

約数の個数: 48

約数和(自身を含む): 18745372800

約数和(自身を除く): 9956478260

約数列:

[1, 2, 4, 5, 10, 20, 109, 157, 218, 314, 436, 545, 628, 785, 1090, 1570, 2180, 3140, 17113, 25679, 34226, 51358, 68452, 85565, 102716, 128395, 171130, 256790, 342260, 513580, 2799011, 4031603, 5598022, 8063206, 11196044, 13995055, 16126412, 20158015, 27990110, 40316030, 55980220, 80632060, 439444727, 878889454, 1757778908, 2197223635, 4394447270, 8788894540]

約数ペア:

[(1, 8788894540), (2, 4394447270), (4, 2197223635), (5, 1757778908), (10, 878889454), (20, 439444727), (109, 80632060), (157, 55980220), (218, 40316030), (314, 27990110), (436, 20158015), (545, 16126412), (628, 13995055), (785, 11196044), (1090, 8063206), (1570, 5598022), (2180, 4031603), (3140, 2799011), (17113, 513580), (25679, 342260), (34226, 256790), (51358, 171130), (68452, 128395), (85565, 102716)]