61256780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{13859}}^1$

素因数の和:13898

約数の個数: 48

約数和(自身を含む): 146694240

約数和(自身を除く): 85437460

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 13859, 27718, 55436, 69295, 138590, 180167, 235603, 277180, 360334, 471206, 720668, 900835, 942412, 1178015, 1801670, 2356030, 3062839, 3603340, 4712060, 6125678, 12251356, 15314195, 30628390, 61256780]

約数ペア:

[(1, 61256780), (2, 30628390), (4, 15314195), (5, 12251356), (10, 6125678), (13, 4712060), (17, 3603340), (20, 3062839), (26, 2356030), (34, 1801670), (52, 1178015), (65, 942412), (68, 900835), (85, 720668), (130, 471206), (170, 360334), (221, 277180), (260, 235603), (340, 180167), (442, 138590), (884, 69295), (1105, 55436), (2210, 27718), (4420, 13859)]