128998998

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{1531}}^1$

素因数の和:1721

約数の個数: 48

約数和(自身を含む): 290614272

約数和(自身を除く): 161615274

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 151, 186, 279, 302, 453, 558, 906, 1359, 1531, 2718, 3062, 4593, 4681, 9186, 9362, 13779, 14043, 27558, 28086, 42129, 47461, 84258, 94922, 142383, 231181, 284766, 427149, 462362, 693543, 854298, 1387086, 2080629, 4161258, 7166611, 14333222, 21499833, 42999666, 64499499, 128998998]

約数ペア:

[(1, 128998998), (2, 64499499), (3, 42999666), (6, 21499833), (9, 14333222), (18, 7166611), (31, 4161258), (62, 2080629), (93, 1387086), (151, 854298), (186, 693543), (279, 462362), (302, 427149), (453, 284766), (558, 231181), (906, 142383), (1359, 94922), (1531, 84258), (2718, 47461), (3062, 42129), (4593, 28086), (4681, 27558), (9186, 14043), (9362, 13779)]