778880758760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2081}}^1\times {\mathrm{719773}}^1$

素因数の和:721878

約数の個数: 64

約数和(自身を含む): 1888197529680

約数和(自身を除く): 1109316770920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2081, 4162, 8324, 10405, 16648, 20810, 27053, 41620, 54106, 83240, 108212, 135265, 216424, 270530, 541060, 719773, 1082120, 1439546, 2879092, 3598865, 5758184, 7197730, 9357049, 14395460, 18714098, 28790920, 37428196, 46785245, 74856392, 93570490, 187140980, 374281960, 1497847613, 2995695226, 5991390452, 7489238065, 11982780904, 14978476130, 19472018969, 29956952260, 38944037938, 59913904520, 77888075876, 97360094845, 155776151752, 194720189690, 389440379380, 778880758760]

約数ペア:

[(1, 778880758760), (2, 389440379380), (4, 194720189690), (5, 155776151752), (8, 97360094845), (10, 77888075876), (13, 59913904520), (20, 38944037938), (26, 29956952260), (40, 19472018969), (52, 14978476130), (65, 11982780904), (104, 7489238065), (130, 5991390452), (260, 2995695226), (520, 1497847613), (2081, 374281960), (4162, 187140980), (8324, 93570490), (10405, 74856392), (16648, 46785245), (20810, 37428196), (27053, 28790920), (41620, 18714098), (54106, 14395460), (83240, 9357049), (108212, 7197730), (135265, 5758184), (216424, 3598865), (270530, 2879092), (541060, 1439546), (719773, 1082120)]