78428480

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1109}}^1$

素因数の和:1156

約数の個数: 112

約数和(自身を含む): 213146640

約数和(自身を除く): 134718160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 130, 136, 160, 170, 208, 221, 260, 272, 320, 340, 416, 442, 520, 544, 680, 832, 884, 1040, 1088, 1105, 1109, 1360, 1768, 2080, 2210, 2218, 2720, 3536, 4160, 4420, 4436, 5440, 5545, 7072, 8840, 8872, 11090, 14144, 14417, 17680, 17744, 18853, 22180, 28834, 35360, 35488, 37706, 44360, 57668, 70720, 70976, 72085, 75412, 88720, 94265, 115336, 144170, 150824, 177440, 188530, 230672, 245089, 288340, 301648, 354880, 377060, 461344, 490178, 576680, 603296, 754120, 922688, 980356, 1153360, 1206592, 1225445, 1508240, 1960712, 2306720, 2450890, 3016480, 3921424, 4613440, 4901780, 6032960, 7842848, 9803560, 15685696, 19607120, 39214240, 78428480]

約数ペア:

[(1, 78428480), (2, 39214240), (4, 19607120), (5, 15685696), (8, 9803560), (10, 7842848), (13, 6032960), (16, 4901780), (17, 4613440), (20, 3921424), (26, 3016480), (32, 2450890), (34, 2306720), (40, 1960712), (52, 1508240), (64, 1225445), (65, 1206592), (68, 1153360), (80, 980356), (85, 922688), (104, 754120), (130, 603296), (136, 576680), (160, 490178), (170, 461344), (208, 377060), (221, 354880), (260, 301648), (272, 288340), (320, 245089), (340, 230672), (416, 188530), (442, 177440), (520, 150824), (544, 144170), (680, 115336), (832, 94265), (884, 88720), (1040, 75412), (1088, 72085), (1105, 70976), (1109, 70720), (1360, 57668), (1768, 44360), (2080, 37706), (2210, 35488), (2218, 35360), (2720, 28834), (3536, 22180), (4160, 18853), (4420, 17744), (4436, 17680), (5440, 14417), (5545, 14144), (7072, 11090), (8840, 8872)]