78278720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{607}}^1$

素因数の和:668

約数の個数: 112

約数和(自身を含む): 207556608

約数和(自身を除く): 129277888

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, 607, 620, 806, 832, 992, 1040, 1214, 1240, 1612, 1984, 2015, 2080, 2428, 2480, 3035, 3224, 4030, 4160, 4856, 4960, 6070, 6448, 7891, 8060, 9712, 9920, 12140, 12896, 15782, 16120, 18817, 19424, 24280, 25792, 31564, 32240, 37634, 38848, 39455, 48560, 63128, 64480, 75268, 78910, 94085, 97120, 126256, 128960, 150536, 157820, 188170, 194240, 244621, 252512, 301072, 315640, 376340, 489242, 505024, 602144, 631280, 752680, 978484, 1204288, 1223105, 1262560, 1505360, 1956968, 2446210, 2525120, 3010720, 3913936, 4892420, 6021440, 7827872, 9784840, 15655744, 19569680, 39139360, 78278720]

約数ペア:

[(1, 78278720), (2, 39139360), (4, 19569680), (5, 15655744), (8, 9784840), (10, 7827872), (13, 6021440), (16, 4892420), (20, 3913936), (26, 3010720), (31, 2525120), (32, 2446210), (40, 1956968), (52, 1505360), (62, 1262560), (64, 1223105), (65, 1204288), (80, 978484), (104, 752680), (124, 631280), (130, 602144), (155, 505024), (160, 489242), (208, 376340), (248, 315640), (260, 301072), (310, 252512), (320, 244621), (403, 194240), (416, 188170), (496, 157820), (520, 150536), (607, 128960), (620, 126256), (806, 97120), (832, 94085), (992, 78910), (1040, 75268), (1214, 64480), (1240, 63128), (1612, 48560), (1984, 39455), (2015, 38848), (2080, 37634), (2428, 32240), (2480, 31564), (3035, 25792), (3224, 24280), (4030, 19424), (4160, 18817), (4856, 16120), (4960, 15782), (6070, 12896), (6448, 12140), (7891, 9920), (8060, 9712)]