78218790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1531}}^1$

素因数の和:1685

約数の個数: 64

約数和(自身を含む): 203841792

約数和(自身を除く): 125623002

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 131, 195, 262, 390, 393, 655, 786, 1310, 1531, 1703, 1965, 3062, 3406, 3930, 4593, 5109, 7655, 8515, 9186, 10218, 15310, 17030, 19903, 22965, 25545, 39806, 45930, 51090, 59709, 99515, 119418, 199030, 200561, 298545, 401122, 597090, 601683, 1002805, 1203366, 2005610, 2607293, 3008415, 5214586, 6016830, 7821879, 13036465, 15643758, 26072930, 39109395, 78218790]

約数ペア:

[(1, 78218790), (2, 39109395), (3, 26072930), (5, 15643758), (6, 13036465), (10, 7821879), (13, 6016830), (15, 5214586), (26, 3008415), (30, 2607293), (39, 2005610), (65, 1203366), (78, 1002805), (130, 601683), (131, 597090), (195, 401122), (262, 298545), (390, 200561), (393, 199030), (655, 119418), (786, 99515), (1310, 59709), (1531, 51090), (1703, 45930), (1965, 39806), (3062, 25545), (3406, 22965), (3930, 19903), (4593, 17030), (5109, 15310), (7655, 10218), (8515, 9186)]