258306880

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2003}}^1$

素因数の和:2064

約数の個数: 112

約数和(自身を含む): 684117504

約数和(自身を除く): 425810624

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 806, 832, 992, 1040, 1240, 1612, 1984, 2003, 2015, 2080, 2480, 3224, 4006, 4030, 4160, 4960, 6448, 8012, 8060, 9920, 10015, 12896, 16024, 16120, 20030, 25792, 26039, 32048, 32240, 40060, 52078, 62093, 64096, 64480, 80120, 104156, 124186, 128192, 128960, 130195, 160240, 208312, 248372, 260390, 310465, 320480, 416624, 496744, 520780, 620930, 640960, 807209, 833248, 993488, 1041560, 1241860, 1614418, 1666496, 1986976, 2083120, 2483720, 3228836, 3973952, 4036045, 4166240, 4967440, 6457672, 8072090, 8332480, 9934880, 12915344, 16144180, 19869760, 25830688, 32288360, 51661376, 64576720, 129153440, 258306880]

約数ペア:

[(1, 258306880), (2, 129153440), (4, 64576720), (5, 51661376), (8, 32288360), (10, 25830688), (13, 19869760), (16, 16144180), (20, 12915344), (26, 9934880), (31, 8332480), (32, 8072090), (40, 6457672), (52, 4967440), (62, 4166240), (64, 4036045), (65, 3973952), (80, 3228836), (104, 2483720), (124, 2083120), (130, 1986976), (155, 1666496), (160, 1614418), (208, 1241860), (248, 1041560), (260, 993488), (310, 833248), (320, 807209), (403, 640960), (416, 620930), (496, 520780), (520, 496744), (620, 416624), (806, 320480), (832, 310465), (992, 260390), (1040, 248372), (1240, 208312), (1612, 160240), (1984, 130195), (2003, 128960), (2015, 128192), (2080, 124186), (2480, 104156), (3224, 80120), (4006, 64480), (4030, 64096), (4160, 62093), (4960, 52078), (6448, 40060), (8012, 32240), (8060, 32048), (9920, 26039), (10015, 25792), (12896, 20030), (16024, 16120)]