80612480

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9689}}^1$

素因数の和:9721

約数の個数: 64

約数和(自身を含む): 207559800

約数和(自身を除く): 126947320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 9689, 19378, 38756, 48445, 77512, 96890, 125957, 155024, 193780, 251914, 310048, 387560, 503828, 620096, 629785, 775120, 1007656, 1240192, 1259570, 1550240, 2015312, 2519140, 3100480, 4030624, 5038280, 6200960, 8061248, 10076560, 16122496, 20153120, 40306240, 80612480]

約数ペア:

[(1, 80612480), (2, 40306240), (4, 20153120), (5, 16122496), (8, 10076560), (10, 8061248), (13, 6200960), (16, 5038280), (20, 4030624), (26, 3100480), (32, 2519140), (40, 2015312), (52, 1550240), (64, 1259570), (65, 1240192), (80, 1007656), (104, 775120), (128, 629785), (130, 620096), (160, 503828), (208, 387560), (260, 310048), (320, 251914), (416, 193780), (520, 155024), (640, 125957), (832, 96890), (1040, 77512), (1664, 48445), (2080, 38756), (4160, 19378), (8320, 9689)]