77771720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149561}}^1$

素因数の和:149585

約数の個数: 32

約数和(自身を含む): 188448120

約数和(自身を除く): 110676400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 149561, 299122, 598244, 747805, 1196488, 1495610, 1944293, 2991220, 3888586, 5982440, 7777172, 9721465, 15554344, 19442930, 38885860, 77771720]

約数ペア:

[(1, 77771720), (2, 38885860), (4, 19442930), (5, 15554344), (8, 9721465), (10, 7777172), (13, 5982440), (20, 3888586), (26, 2991220), (40, 1944293), (52, 1495610), (65, 1196488), (104, 747805), (130, 598244), (260, 299122), (520, 149561)]