81621264

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2887}}^1$

素因数の和:2948

約数の個数: 80

約数和(自身を含む): 229191680

約数和(自身を除く): 147570416

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 31, 38, 48, 57, 62, 76, 93, 114, 124, 152, 186, 228, 248, 304, 372, 456, 496, 589, 744, 912, 1178, 1488, 1767, 2356, 2887, 3534, 4712, 5774, 7068, 8661, 9424, 11548, 14136, 17322, 23096, 28272, 34644, 46192, 54853, 69288, 89497, 109706, 138576, 164559, 178994, 219412, 268491, 329118, 357988, 438824, 536982, 658236, 715976, 877648, 1073964, 1316472, 1431952, 1700443, 2147928, 2632944, 3400886, 4295856, 5101329, 6801772, 10202658, 13603544, 20405316, 27207088, 40810632, 81621264]

約数ペア:

[(1, 81621264), (2, 40810632), (3, 27207088), (4, 20405316), (6, 13603544), (8, 10202658), (12, 6801772), (16, 5101329), (19, 4295856), (24, 3400886), (31, 2632944), (38, 2147928), (48, 1700443), (57, 1431952), (62, 1316472), (76, 1073964), (93, 877648), (114, 715976), (124, 658236), (152, 536982), (186, 438824), (228, 357988), (248, 329118), (304, 268491), (372, 219412), (456, 178994), (496, 164559), (589, 138576), (744, 109706), (912, 89497), (1178, 69288), (1488, 54853), (1767, 46192), (2356, 34644), (2887, 28272), (3534, 23096), (4712, 17322), (5774, 14136), (7068, 11548), (8661, 9424)]