1217996975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{2281}}^1$

素因数の和:2388

約数の個数: 48

約数和(自身を含む): 1711390464

約数和(自身を除く): 493393489

約数列:

[1, 5, 13, 25, 31, 53, 65, 155, 265, 325, 403, 689, 775, 1325, 1643, 2015, 2281, 3445, 8215, 10075, 11405, 17225, 21359, 29653, 41075, 57025, 70711, 106795, 120893, 148265, 353555, 533975, 604465, 741325, 919243, 1571609, 1767775, 3022325, 3747683, 4596215, 7858045, 18738415, 22981075, 39290225, 48719879, 93692075, 243599395, 1217996975]

約数ペア:

[(1, 1217996975), (5, 243599395), (13, 93692075), (25, 48719879), (31, 39290225), (53, 22981075), (65, 18738415), (155, 7858045), (265, 4596215), (325, 3747683), (403, 3022325), (689, 1767775), (775, 1571609), (1325, 919243), (1643, 741325), (2015, 604465), (2281, 533975), (3445, 353555), (8215, 148265), (10075, 120893), (11405, 106795), (17225, 70711), (21359, 57025), (29653, 41075)]