258996296

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131071}}^1$

素因数の和:131109

約数の個数: 32

約数和(自身を含む): 550502400

約数和(自身を除く): 291506104

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 131071, 262142, 524284, 1048568, 1703923, 2490349, 3407846, 4980698, 6815692, 9961396, 13631384, 19922792, 32374537, 64749074, 129498148, 258996296]

約数ペア:

[(1, 258996296), (2, 129498148), (4, 64749074), (8, 32374537), (13, 19922792), (19, 13631384), (26, 9961396), (38, 6815692), (52, 4980698), (76, 3407846), (104, 2490349), (152, 1703923), (247, 1048568), (494, 524284), (988, 262142), (1976, 131071)]