638681716

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{1301}}^1$

素因数の和:1480

約数の個数: 48

約数和(自身を含む): 1196923392

約数和(自身を除く): 558241676

約数列:

[1, 2, 4, 31, 37, 62, 74, 107, 124, 148, 214, 428, 1147, 1301, 2294, 2602, 3317, 3959, 4588, 5204, 6634, 7918, 13268, 15836, 40331, 48137, 80662, 96274, 122729, 139207, 161324, 192548, 245458, 278414, 490916, 556828, 1492247, 2984494, 4315417, 5150659, 5968988, 8630834, 10301318, 17261668, 20602636, 159670429, 319340858, 638681716]

約数ペア:

[(1, 638681716), (2, 319340858), (4, 159670429), (31, 20602636), (37, 17261668), (62, 10301318), (74, 8630834), (107, 5968988), (124, 5150659), (148, 4315417), (214, 2984494), (428, 1492247), (1147, 556828), (1301, 490916), (2294, 278414), (2602, 245458), (3317, 192548), (3959, 161324), (4588, 139207), (5204, 122729), (6634, 96274), (7918, 80662), (13268, 48137), (15836, 40331)]