20564530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1$

素因数の和:331

約数の個数: 64

約数和(自身を含む): 45163008

約数和(自身を除く): 24598478

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 53, 70, 106, 115, 161, 230, 241, 265, 322, 371, 482, 530, 742, 805, 1205, 1219, 1610, 1687, 1855, 2410, 2438, 3374, 3710, 5543, 6095, 8435, 8533, 11086, 12190, 12773, 16870, 17066, 25546, 27715, 38801, 42665, 55430, 63865, 77602, 85330, 89411, 127730, 178822, 194005, 293779, 388010, 447055, 587558, 894110, 1468895, 2056453, 2937790, 4112906, 10282265, 20564530]

約数ペア:

[(1, 20564530), (2, 10282265), (5, 4112906), (7, 2937790), (10, 2056453), (14, 1468895), (23, 894110), (35, 587558), (46, 447055), (53, 388010), (70, 293779), (106, 194005), (115, 178822), (161, 127730), (230, 89411), (241, 85330), (265, 77602), (322, 63865), (371, 55430), (482, 42665), (530, 38801), (742, 27715), (805, 25546), (1205, 17066), (1219, 16870), (1610, 12773), (1687, 12190), (1855, 11086), (2410, 8533), (2438, 8435), (3374, 6095), (3710, 5543)]