81676816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:344

約数の個数: 80

約数和(自身を含む): 179988480

約数和(自身を除く): 98311664

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 53, 62, 104, 106, 124, 208, 212, 239, 248, 403, 424, 478, 496, 689, 806, 848, 956, 1378, 1612, 1643, 1912, 2756, 3107, 3224, 3286, 3824, 5512, 6214, 6448, 6572, 7409, 11024, 12428, 12667, 13144, 14818, 21359, 24856, 25334, 26288, 29636, 42718, 49712, 50668, 59272, 85436, 96317, 101336, 118544, 164671, 170872, 192634, 202672, 329342, 341744, 385268, 392677, 658684, 770536, 785354, 1317368, 1541072, 1570708, 2634736, 3141416, 5104801, 6282832, 10209602, 20419204, 40838408, 81676816]

約数ペア:

[(1, 81676816), (2, 40838408), (4, 20419204), (8, 10209602), (13, 6282832), (16, 5104801), (26, 3141416), (31, 2634736), (52, 1570708), (53, 1541072), (62, 1317368), (104, 785354), (106, 770536), (124, 658684), (208, 392677), (212, 385268), (239, 341744), (248, 329342), (403, 202672), (424, 192634), (478, 170872), (496, 164671), (689, 118544), (806, 101336), (848, 96317), (956, 85436), (1378, 59272), (1612, 50668), (1643, 49712), (1912, 42718), (2756, 29636), (3107, 26288), (3224, 25334), (3286, 24856), (3824, 21359), (5512, 14818), (6214, 13144), (6448, 12667), (6572, 12428), (7409, 11024)]